<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2020 Workiva-->
<!--r:c63d38a5-3f61-4f77-8a9e-0937e6ad92fa,g:49e95c30-17ee-49d6-a58b-0589d85cc9f9-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/CoverPage" xlink:type="simple" xlink:href="eri-20200630.xsd#CoverPage"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/CoverPage" xlink:type="extended" id="i9399269350024af5b34ec3d5c921d13c_CoverPage"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/CONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="eri-20200630.xsd#CONSOLIDATEDBALANCESHEETS"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/CONSOLIDATEDBALANCESHEETS" xlink:type="extended" id="i6ae3b69f864640eba6e3ff43111467bc_CONSOLIDATEDBALANCESHEETS"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="simple" xlink:href="eri-20200630.xsd#CONSOLIDATEDBALANCESHEETSParenthetical"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="extended" id="i840e1d0b99de4e4cac5d71cdddddb975_CONSOLIDATEDBALANCESHEETSParenthetical"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="simple" xlink:href="eri-20200630.xsd#CONSOLIDATEDSTATEMENTSOFOPERATIONS"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="extended" id="i4558bf56e9334afdb4f1caf80d549dda_CONSOLIDATEDSTATEMENTSOFOPERATIONS">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_bcc0d4b1-d85d-436d-b500-f8d8dd86fa59" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_ee94af20-113c-4fd9-86a5-768e97276f75" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenuesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_bcc0d4b1-d85d-436d-b500-f8d8dd86fa59" xlink:to="loc_us-gaap_RevenuesAbstract_ee94af20-113c-4fd9-86a5-768e97276f75" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_d2688dc4-7afd-455c-a059-20645179cd06" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_ee94af20-113c-4fd9-86a5-768e97276f75" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_d2688dc4-7afd-455c-a059-20645179cd06" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpensesAbstract_4e3cda18-d3b6-4551-86c4-81cde7c5ba1e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostsAndExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_bcc0d4b1-d85d-436d-b500-f8d8dd86fa59" xlink:to="loc_us-gaap_CostsAndExpensesAbstract_4e3cda18-d3b6-4551-86c4-81cde7c5ba1e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_6338bf1d-e5a7-430c-84b1-67653a53e8ab" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_4e3cda18-d3b6-4551-86c4-81cde7c5ba1e" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_6338bf1d-e5a7-430c-84b1-67653a53e8ab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCostOfOperatingRevenue_e5c5daea-5ba2-4a33-9d2c-ef400587d7d2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherCostOfOperatingRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_4e3cda18-d3b6-4551-86c4-81cde7c5ba1e" xlink:to="loc_us-gaap_OtherCostOfOperatingRevenue_e5c5daea-5ba2-4a33-9d2c-ef400587d7d2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketingAndAdvertisingExpense_2cf9b8c1-3877-4d8c-819b-1d6b944783f4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MarketingAndAdvertisingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_4e3cda18-d3b6-4551-86c4-81cde7c5ba1e" xlink:to="loc_us-gaap_MarketingAndAdvertisingExpense_2cf9b8c1-3877-4d8c-819b-1d6b944783f4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_dd39cbea-43cb-458b-93ab-f4f4504d78c2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_4e3cda18-d3b6-4551-86c4-81cde7c5ba1e" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_dd39cbea-43cb-458b-93ab-f4f4504d78c2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CorporateExpense_fcfb6dfb-a310-4a04-93a1-052f4cb1f727" xlink:href="eri-20200630.xsd#eri_CorporateExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_4e3cda18-d3b6-4551-86c4-81cde7c5ba1e" xlink:to="loc_eri_CorporateExpense_fcfb6dfb-a310-4a04-93a1-052f4cb1f727" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_ed379f9e-e484-498c-ac0c-0364b88a1fa9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_4e3cda18-d3b6-4551-86c4-81cde7c5ba1e" xlink:to="loc_us-gaap_AssetImpairmentCharges_ed379f9e-e484-498c-ac0c-0364b88a1fa9" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_da891e68-279e-470e-adc9-f2ef1a15d91f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_4e3cda18-d3b6-4551-86c4-81cde7c5ba1e" xlink:to="loc_us-gaap_DepreciationAndAmortization_da891e68-279e-470e-adc9-f2ef1a15d91f" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_08925ba6-20c8-4c4b-a81c-eabc2fffa1a5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostsAndExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_4e3cda18-d3b6-4551-86c4-81cde7c5ba1e" xlink:to="loc_us-gaap_CostsAndExpenses_08925ba6-20c8-4c4b-a81c-eabc2fffa1a5" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets1_428c56a0-98ba-4325-9d6e-94b55db7bd9f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainLossOnDispositionOfAssets1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_bcc0d4b1-d85d-436d-b500-f8d8dd86fa59" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets1_428c56a0-98ba-4325-9d6e-94b55db7bd9f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquisitionCosts_1236302b-4352-43b2-b3d3-33c66f044e0e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AcquisitionCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_bcc0d4b1-d85d-436d-b500-f8d8dd86fa59" xlink:to="loc_us-gaap_AcquisitionCosts_1236302b-4352-43b2-b3d3-33c66f044e0e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_966f7447-7de5-47bc-8da1-341f3c0e3c8f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_bcc0d4b1-d85d-436d-b500-f8d8dd86fa59" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_966f7447-7de5-47bc-8da1-341f3c0e3c8f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_fa27195d-31d1-4ed2-9859-befdf8b9e469" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_bcc0d4b1-d85d-436d-b500-f8d8dd86fa59" xlink:to="loc_us-gaap_OperatingIncomeLoss_fa27195d-31d1-4ed2-9859-befdf8b9e469" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpenseAbstract_5138e766-21c1-4d07-a5f2-c1db13f4825c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NonoperatingIncomeExpenseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_bcc0d4b1-d85d-436d-b500-f8d8dd86fa59" xlink:to="loc_us-gaap_NonoperatingIncomeExpenseAbstract_5138e766-21c1-4d07-a5f2-c1db13f4825c" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_da923efd-83a7-4a2e-a459-74d51894fbea" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_5138e766-21c1-4d07-a5f2-c1db13f4825c" xlink:to="loc_us-gaap_InterestExpense_da923efd-83a7-4a2e-a459-74d51894fbea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_93236ac1-0ba0-43dc-af23-e5136748e878" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_5138e766-21c1-4d07-a5f2-c1db13f4825c" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_93236ac1-0ba0-43dc-af23-e5136748e878" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrealizedGainLossOnInvestments_c0211088-f84d-4b1e-89f3-ca5619cbaf0f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UnrealizedGainLossOnInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_5138e766-21c1-4d07-a5f2-c1db13f4825c" xlink:to="loc_us-gaap_UnrealizedGainLossOnInvestments_c0211088-f84d-4b1e-89f3-ca5619cbaf0f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_18ee25f8-b729-4206-a488-8ad92227e5cd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_5138e766-21c1-4d07-a5f2-c1db13f4825c" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_18ee25f8-b729-4206-a488-8ad92227e5cd" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c22a84c4-3111-4284-98b6-00a3468dd768" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_bcc0d4b1-d85d-436d-b500-f8d8dd86fa59" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c22a84c4-3111-4284-98b6-00a3468dd768" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_aeccc312-5001-4630-b081-3743c442053c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_bcc0d4b1-d85d-436d-b500-f8d8dd86fa59" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_aeccc312-5001-4630-b081-3743c442053c" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_324195a0-25d3-41b6-b13b-1934a6fb3387" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_bcc0d4b1-d85d-436d-b500-f8d8dd86fa59" xlink:to="loc_us-gaap_NetIncomeLoss_324195a0-25d3-41b6-b13b-1934a6fb3387" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_f50b7959-1104-45e5-aa4d-e91fe21a9acc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_bcc0d4b1-d85d-436d-b500-f8d8dd86fa59" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_f50b7959-1104-45e5-aa4d-e91fe21a9acc" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_bd180edd-f9ce-49bf-a5cc-f9a875d0bec9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_f50b7959-1104-45e5-aa4d-e91fe21a9acc" xlink:to="loc_us-gaap_EarningsPerShareBasic_bd180edd-f9ce-49bf-a5cc-f9a875d0bec9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_7c25cf44-b905-40c9-a529-6e6ddad3abf2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_f50b7959-1104-45e5-aa4d-e91fe21a9acc" xlink:to="loc_us-gaap_EarningsPerShareDiluted_7c25cf44-b905-40c9-a529-6e6ddad3abf2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_d1cb01e7-fa7c-441a-8117-d2463c48a13b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_bcc0d4b1-d85d-436d-b500-f8d8dd86fa59" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_d1cb01e7-fa7c-441a-8117-d2463c48a13b" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_f9b3c881-7695-4bb2-9a0d-5401e6d45498" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_d1cb01e7-fa7c-441a-8117-d2463c48a13b" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_f9b3c881-7695-4bb2-9a0d-5401e6d45498" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_070d74a1-c155-4b59-b0f0-9774adb587d0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_d1cb01e7-fa7c-441a-8117-d2463c48a13b" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_070d74a1-c155-4b59-b0f0-9774adb587d0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_185ce7ab-c7bd-4c37-8125-810267a4217e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_bcc0d4b1-d85d-436d-b500-f8d8dd86fa59" xlink:to="loc_us-gaap_StatementTable_185ce7ab-c7bd-4c37-8125-810267a4217e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_42538b8b-cf2d-4dc6-839a-496adccd825b" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_185ce7ab-c7bd-4c37-8125-810267a4217e" xlink:to="loc_srt_ProductOrServiceAxis_42538b8b-cf2d-4dc6-839a-496adccd825b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_42538b8b-cf2d-4dc6-839a-496adccd825b_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_42538b8b-cf2d-4dc6-839a-496adccd825b" xlink:to="loc_srt_ProductsAndServicesDomain_42538b8b-cf2d-4dc6-839a-496adccd825b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_c780cb25-aff0-4545-91a1-08dd66ec482c" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_42538b8b-cf2d-4dc6-839a-496adccd825b" xlink:to="loc_srt_ProductsAndServicesDomain_c780cb25-aff0-4545-91a1-08dd66ec482c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CasinoAndPariMutuelCommissionsMember_9f025425-688d-4ff3-a695-b79c881f602d" xlink:href="eri-20200630.xsd#eri_CasinoAndPariMutuelCommissionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_c780cb25-aff0-4545-91a1-08dd66ec482c" xlink:to="loc_eri_CasinoAndPariMutuelCommissionsMember_9f025425-688d-4ff3-a695-b79c881f602d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FoodAndBeverageMember_60c3a8ee-2594-43f9-9f29-e66f24092072" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FoodAndBeverageMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_c780cb25-aff0-4545-91a1-08dd66ec482c" xlink:to="loc_us-gaap_FoodAndBeverageMember_60c3a8ee-2594-43f9-9f29-e66f24092072" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HotelOwnedMember_246675b8-0180-4505-beca-b4548cb45dd5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HotelOwnedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_c780cb25-aff0-4545-91a1-08dd66ec482c" xlink:to="loc_us-gaap_HotelOwnedMember_246675b8-0180-4505-beca-b4548cb45dd5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductAndServiceOtherMember_ee252078-19e1-410f-a581-03a35b2b5fd4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProductAndServiceOtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_c780cb25-aff0-4545-91a1-08dd66ec482c" xlink:to="loc_us-gaap_ProductAndServiceOtherMember_ee252078-19e1-410f-a581-03a35b2b5fd4" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSSINCOME" xlink:type="simple" xlink:href="eri-20200630.xsd#CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSSINCOME"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSSINCOME" xlink:type="extended" id="ie76d5999b3ab4bc084f998f7dbc1de46_CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSSINCOME"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="simple" xlink:href="eri-20200630.xsd#CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="extended" id="i9cef13e7c7bf4785b7df044f228c50ce_CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_00633c46-ec8a-4a22-b720-07652d122bd5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesIssued_b7f35a08-43b6-4b16-add2-ec5efdba2a7c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_00633c46-ec8a-4a22-b720-07652d122bd5" xlink:to="loc_us-gaap_SharesIssued_b7f35a08-43b6-4b16-add2-ec5efdba2a7c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_c9714e3c-562a-42a0-a186-a333c04af797" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_00633c46-ec8a-4a22-b720-07652d122bd5" xlink:to="loc_us-gaap_StockholdersEquity_c9714e3c-562a-42a0-a186-a333c04af797" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_8ecfb489-0d02-4496-9c09-724587973d26" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_00633c46-ec8a-4a22-b720-07652d122bd5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_8ecfb489-0d02-4496-9c09-724587973d26" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_de4f11d3-8baf-41c5-8db9-7f0c63a18755" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_00633c46-ec8a-4a22-b720-07652d122bd5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_de4f11d3-8baf-41c5-8db9-7f0c63a18755" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_25d9033f-74bb-414c-82d8-d6946cd9ab04" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_00633c46-ec8a-4a22-b720-07652d122bd5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_25d9033f-74bb-414c-82d8-d6946cd9ab04" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_1fa826a9-f144-4724-9a6e-7b965051388a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_00633c46-ec8a-4a22-b720-07652d122bd5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_1fa826a9-f144-4724-9a6e-7b965051388a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_d9345fa5-d324-4440-bf5c-0777f0f68b83" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_00633c46-ec8a-4a22-b720-07652d122bd5" xlink:to="loc_us-gaap_ProfitLoss_d9345fa5-d324-4440-bf5c-0777f0f68b83" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_cbd6e8cc-41e0-4736-bb46-3e199b33a342" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_00633c46-ec8a-4a22-b720-07652d122bd5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_cbd6e8cc-41e0-4736-bb46-3e199b33a342" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_8da3a331-0890-4050-91e2-b0638e28e762" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_00633c46-ec8a-4a22-b720-07652d122bd5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_8da3a331-0890-4050-91e2-b0638e28e762" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification_d84c4129-2d27-4e95-961c-450ded499a0e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_00633c46-ec8a-4a22-b720-07652d122bd5" xlink:to="loc_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification_d84c4129-2d27-4e95-961c-450ded499a0e" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SharesWithheldRelatedToSettlementOfStockAwards_3aae3040-b8a0-42c9-a298-b8449b02823f" xlink:href="eri-20200630.xsd#eri_SharesWithheldRelatedToSettlementOfStockAwards"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_00633c46-ec8a-4a22-b720-07652d122bd5" xlink:to="loc_eri_SharesWithheldRelatedToSettlementOfStockAwards_3aae3040-b8a0-42c9-a298-b8449b02823f" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SharesWithheldRelatedToSettlementOfStockAwardsValue_c4e80510-61c0-4d6c-8be1-a9cf786bc4cf" xlink:href="eri-20200630.xsd#eri_SharesWithheldRelatedToSettlementOfStockAwardsValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_00633c46-ec8a-4a22-b720-07652d122bd5" xlink:to="loc_eri_SharesWithheldRelatedToSettlementOfStockAwardsValue_c4e80510-61c0-4d6c-8be1-a9cf786bc4cf" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesIssued_fd617516-19ba-4f5b-a4b2-f13a0e3c1931" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SharesIssued"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_cecb991c-a74d-48b5-acd9-1b02b85b30ff" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_ba62b05e-e4c5-43fd-a1c6-defe98f4d172" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_00633c46-ec8a-4a22-b720-07652d122bd5" xlink:to="loc_us-gaap_StatementTable_ba62b05e-e4c5-43fd-a1c6-defe98f4d172" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_32cd9a93-3428-42b2-9fee-00e7d6153008" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_ba62b05e-e4c5-43fd-a1c6-defe98f4d172" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_32cd9a93-3428-42b2-9fee-00e7d6153008" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_32cd9a93-3428-42b2-9fee-00e7d6153008_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_32cd9a93-3428-42b2-9fee-00e7d6153008" xlink:to="loc_us-gaap_EquityComponentDomain_32cd9a93-3428-42b2-9fee-00e7d6153008_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_0e1b5803-877b-4eb6-af9c-bb28376ec3cf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_32cd9a93-3428-42b2-9fee-00e7d6153008" xlink:to="loc_us-gaap_EquityComponentDomain_0e1b5803-877b-4eb6-af9c-bb28376ec3cf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_f8d5b8e6-4228-4844-becb-1633cacf1b7d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0e1b5803-877b-4eb6-af9c-bb28376ec3cf" xlink:to="loc_us-gaap_CommonStockMember_f8d5b8e6-4228-4844-becb-1633cacf1b7d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_560696b2-0ae1-4eec-895f-02b6d62bf0c4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0e1b5803-877b-4eb6-af9c-bb28376ec3cf" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_560696b2-0ae1-4eec-895f-02b6d62bf0c4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_608b51f7-04c7-483d-add6-ed3beae542a4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0e1b5803-877b-4eb6-af9c-bb28376ec3cf" xlink:to="loc_us-gaap_RetainedEarningsMember_608b51f7-04c7-483d-add6-ed3beae542a4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_05c832b9-c1ce-46fe-928d-9f29d9763192" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0e1b5803-877b-4eb6-af9c-bb28376ec3cf" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_05c832b9-c1ce-46fe-928d-9f29d9763192" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockMember_385b01fc-3c51-428b-b237-e0ba7ad6e372" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0e1b5803-877b-4eb6-af9c-bb28376ec3cf" xlink:to="loc_us-gaap_TreasuryStockMember_385b01fc-3c51-428b-b237-e0ba7ad6e372" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="eri-20200630.xsd#CONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended" id="i0b3a38d702ca423d8523765ac5e03602_CONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/OrganizationandBasisofPresentation" xlink:type="simple" xlink:href="eri-20200630.xsd#OrganizationandBasisofPresentation"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/OrganizationandBasisofPresentation" xlink:type="extended" id="i9d94676f9f76492c91efbf67f4e94439_OrganizationandBasisofPresentation"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/OrganizationandBasisofPresentationPolicies" xlink:type="simple" xlink:href="eri-20200630.xsd#OrganizationandBasisofPresentationPolicies"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/OrganizationandBasisofPresentationPolicies" xlink:type="extended" id="ia8e83dc3818b4e38bfc9a909ab00c629_OrganizationandBasisofPresentationPolicies"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/OrganizationandBasisofPresentationTables" xlink:type="simple" xlink:href="eri-20200630.xsd#OrganizationandBasisofPresentationTables"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/OrganizationandBasisofPresentationTables" xlink:type="extended" id="i9706f8f9661643a8b7a7e4184f2e80f6_OrganizationandBasisofPresentationTables"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/OrganizationandBasisofPresentationAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#OrganizationandBasisofPresentationAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/OrganizationandBasisofPresentationAdditionalInformationDetails" xlink:type="extended" id="i4afe989571784b11bd1c98713bcb35aa_OrganizationandBasisofPresentationAdditionalInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_eri_BasisOfPresentationLineItems_0581d918-adb0-4790-8bab-bd679367cc30" xlink:href="eri-20200630.xsd#eri_BasisOfPresentationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_NumberOfGamingFacilities_1278c0bc-9f7b-473b-bf56-971b682f86b4" xlink:href="eri-20200630.xsd#eri_NumberOfGamingFacilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_BasisOfPresentationLineItems_0581d918-adb0-4790-8bab-bd679367cc30" xlink:to="loc_eri_NumberOfGamingFacilities_1278c0bc-9f7b-473b-bf56-971b682f86b4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfStatesInWhichEntityOperates_79c2c325-2aa5-4041-85c7-804e1ee57540" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NumberOfStatesInWhichEntityOperates"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_BasisOfPresentationLineItems_0581d918-adb0-4790-8bab-bd679367cc30" xlink:to="loc_us-gaap_NumberOfStatesInWhichEntityOperates_79c2c325-2aa5-4041-85c7-804e1ee57540" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_NumberOfSlotMachinesAndVideoLotteryTerminals_7085c4b7-e1d0-48d1-95d3-e2b833a04e88" xlink:href="eri-20200630.xsd#eri_NumberOfSlotMachinesAndVideoLotteryTerminals"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_BasisOfPresentationLineItems_0581d918-adb0-4790-8bab-bd679367cc30" xlink:to="loc_eri_NumberOfSlotMachinesAndVideoLotteryTerminals_7085c4b7-e1d0-48d1-95d3-e2b833a04e88" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_NumberOfTableGames_65e6a78b-bd20-434f-aea2-6783c2d6de9b" xlink:href="eri-20200630.xsd#eri_NumberOfTableGames"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_BasisOfPresentationLineItems_0581d918-adb0-4790-8bab-bd679367cc30" xlink:to="loc_eri_NumberOfTableGames_65e6a78b-bd20-434f-aea2-6783c2d6de9b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_TotalNumberOfProperties_bfa2f4bf-7eb9-4739-96dc-f900094a2ae9" xlink:href="eri-20200630.xsd#eri_TotalNumberOfProperties"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_BasisOfPresentationLineItems_0581d918-adb0-4790-8bab-bd679367cc30" xlink:to="loc_eri_TotalNumberOfProperties_bfa2f4bf-7eb9-4739-96dc-f900094a2ae9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_NumberOfRoomsInHotel_cc402330-7145-4563-98ab-63d1116e0906" xlink:href="eri-20200630.xsd#eri_NumberOfRoomsInHotel"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_BasisOfPresentationLineItems_0581d918-adb0-4790-8bab-bd679367cc30" xlink:to="loc_eri_NumberOfRoomsInHotel_cc402330-7145-4563-98ab-63d1116e0906" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfCountriesInWhichEntityOperates_a2e7e886-dddd-413a-8b2f-4dcbb06c20b5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NumberOfCountriesInWhichEntityOperates"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_BasisOfPresentationLineItems_0581d918-adb0-4790-8bab-bd679367cc30" xlink:to="loc_us-gaap_NumberOfCountriesInWhichEntityOperates_a2e7e886-dddd-413a-8b2f-4dcbb06c20b5" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_215d2c3b-643c-4e15-88b6-69823035cb41" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_BasisOfPresentationLineItems_0581d918-adb0-4790-8bab-bd679367cc30" xlink:to="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_215d2c3b-643c-4e15-88b6-69823035cb41" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_cd6c1bde-9501-4815-8385-86970a222edc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_BasisOfPresentationLineItems_0581d918-adb0-4790-8bab-bd679367cc30" xlink:to="loc_us-gaap_NumberOfReportableSegments_cd6c1bde-9501-4815-8385-86970a222edc" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_NumberOfGeographicRegion_6c1137dc-d527-4577-ad8e-a88ed5484252" xlink:href="eri-20200630.xsd#eri_NumberOfGeographicRegion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_BasisOfPresentationLineItems_0581d918-adb0-4790-8bab-bd679367cc30" xlink:to="loc_eri_NumberOfGeographicRegion_6c1137dc-d527-4577-ad8e-a88ed5484252" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_PercentageOfFurloughedEmployees_40311965-f4b8-482d-9dc3-4ca232b13d60" xlink:href="eri-20200630.xsd#eri_PercentageOfFurloughedEmployees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_BasisOfPresentationLineItems_0581d918-adb0-4790-8bab-bd679367cc30" xlink:to="loc_eri_PercentageOfFurloughedEmployees_40311965-f4b8-482d-9dc3-4ca232b13d60" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_BasisOfPresentationTable_d4f8ed0f-4b93-46da-938e-475f9ab17823" xlink:href="eri-20200630.xsd#eri_BasisOfPresentationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_eri_BasisOfPresentationLineItems_0581d918-adb0-4790-8bab-bd679367cc30" xlink:to="loc_eri_BasisOfPresentationTable_d4f8ed0f-4b93-46da-938e-475f9ab17823" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_b9951c6c-8427-4db7-bb51-6bf9ba3bbee7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_eri_BasisOfPresentationTable_d4f8ed0f-4b93-46da-938e-475f9ab17823" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_b9951c6c-8427-4db7-bb51-6bf9ba3bbee7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_b9951c6c-8427-4db7-bb51-6bf9ba3bbee7_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_b9951c6c-8427-4db7-bb51-6bf9ba3bbee7" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_b9951c6c-8427-4db7-bb51-6bf9ba3bbee7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_098344f8-de14-4b69-93d2-07f9ca05c89b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_b9951c6c-8427-4db7-bb51-6bf9ba3bbee7" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_098344f8-de14-4b69-93d2-07f9ca05c89b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_09a9fec0-e5a8-4b28-8452-e67722a08367" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_098344f8-de14-4b69-93d2-07f9ca05c89b" xlink:to="loc_us-gaap_SubsequentEventMember_09a9fec0-e5a8-4b28-8452-e67722a08367" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_86c2b138-d944-444c-8294-0329d1733c2e" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_eri_BasisOfPresentationTable_d4f8ed0f-4b93-46da-938e-475f9ab17823" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_86c2b138-d944-444c-8294-0329d1733c2e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_86c2b138-d944-444c-8294-0329d1733c2e_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_86c2b138-d944-444c-8294-0329d1733c2e" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_86c2b138-d944-444c-8294-0329d1733c2e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_a844c6e6-32c5-470d-a017-26051e7e6249" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_86c2b138-d944-444c-8294-0329d1733c2e" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_a844c6e6-32c5-470d-a017-26051e7e6249" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SilverLegacyJointVentureMember_aa02c5a2-592e-4025-bcd9-550157c1db7d" xlink:href="eri-20200630.xsd#eri_SilverLegacyJointVentureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_a844c6e6-32c5-470d-a017-26051e7e6249" xlink:to="loc_eri_SilverLegacyJointVentureMember_aa02c5a2-592e-4025-bcd9-550157c1db7d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_ac844f7e-b49f-4aaa-9a7b-5c1f77df278a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_eri_BasisOfPresentationTable_d4f8ed0f-4b93-46da-938e-475f9ab17823" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_ac844f7e-b49f-4aaa-9a7b-5c1f77df278a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_ac844f7e-b49f-4aaa-9a7b-5c1f77df278a_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_ac844f7e-b49f-4aaa-9a7b-5c1f77df278a" xlink:to="loc_us-gaap_RelatedPartyDomain_ac844f7e-b49f-4aaa-9a7b-5c1f77df278a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_3a668dbc-97cf-4a70-a022-dc3cfc2a4ff6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_ac844f7e-b49f-4aaa-9a7b-5c1f77df278a" xlink:to="loc_us-gaap_RelatedPartyDomain_3a668dbc-97cf-4a70-a022-dc3cfc2a4ff6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_EldoradoResortCasinoShreveportJointVentureAndColumbiaPropertiesTahoeLLCMember_7c673126-2a34-45eb-9214-3f4f8ffd3f57" xlink:href="eri-20200630.xsd#eri_EldoradoResortCasinoShreveportJointVentureAndColumbiaPropertiesTahoeLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_3a668dbc-97cf-4a70-a022-dc3cfc2a4ff6" xlink:to="loc_eri_EldoradoResortCasinoShreveportJointVentureAndColumbiaPropertiesTahoeLLCMember_7c673126-2a34-45eb-9214-3f4f8ffd3f57" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/MergerRelatedTransactions" xlink:type="simple" xlink:href="eri-20200630.xsd#MergerRelatedTransactions"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/MergerRelatedTransactions" xlink:type="extended" id="i3eacc9b7341a420cb93ade132049245a_MergerRelatedTransactions"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/MergerRelatedTransactionsMergerwithCaesarsEntertainmentCorporationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#MergerRelatedTransactionsMergerwithCaesarsEntertainmentCorporationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/MergerRelatedTransactionsMergerwithCaesarsEntertainmentCorporationDetails" xlink:type="extended" id="if30b548282ec4f059ef4abdee5aa5f25_MergerRelatedTransactionsMergerwithCaesarsEntertainmentCorporationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_6ec79e54-c485-46c9-a6b5-984899612383" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionSharePrice_5a0fffb9-d197-4f94-b1ce-413345416d61" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionSharePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6ec79e54-c485-46c9-a6b5-984899612383" xlink:to="loc_us-gaap_BusinessAcquisitionSharePrice_5a0fffb9-d197-4f94-b1ce-413345416d61" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_b2b41401-4de1-4197-9f41-aa4efb53c59c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6ec79e54-c485-46c9-a6b5-984899612383" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_b2b41401-4de1-4197-9f41-aa4efb53c59c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_6f111175-8f37-458d-87ce-b96a74d92c92" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6ec79e54-c485-46c9-a6b5-984899612383" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_6f111175-8f37-458d-87ce-b96a74d92c92" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_BusinessCombinationConsiderationTransferredCashInterest_5bc03d51-bbe7-4f10-90ee-6a5165d9983c" xlink:href="eri-20200630.xsd#eri_BusinessCombinationConsiderationTransferredCashInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6ec79e54-c485-46c9-a6b5-984899612383" xlink:to="loc_eri_BusinessCombinationConsiderationTransferredCashInterest_5bc03d51-bbe7-4f10-90ee-6a5165d9983c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_RightToReceivePerShare_31f89a73-72ae-47fa-bdeb-4600157f8994" xlink:href="eri-20200630.xsd#eri_RightToReceivePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6ec79e54-c485-46c9-a6b5-984899612383" xlink:to="loc_eri_RightToReceivePerShare_31f89a73-72ae-47fa-bdeb-4600157f8994" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_5245cc08-ca49-457e-851f-356804116e11" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityNoteStockSplitConversionRatio1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6ec79e54-c485-46c9-a6b5-984899612383" xlink:to="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_5245cc08-ca49-457e-851f-356804116e11" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableCashPaidPerAcquireeShare_52b1b1f1-5009-4786-99ef-1539f3754e2f" xlink:href="eri-20200630.xsd#eri_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableCashPaidPerAcquireeShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6ec79e54-c485-46c9-a6b5-984899612383" xlink:to="loc_eri_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableCashPaidPerAcquireeShare_52b1b1f1-5009-4786-99ef-1539f3754e2f" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage_14d1e2ec-3499-4b98-9a2e-fe1acbf39d5a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6ec79e54-c485-46c9-a6b5-984899612383" xlink:to="loc_us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage_14d1e2ec-3499-4b98-9a2e-fe1acbf39d5a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_d86f5c0c-ac59-46b7-a15b-1890ef203f6b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6ec79e54-c485-46c9-a6b5-984899612383" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_d86f5c0c-ac59-46b7-a15b-1890ef203f6b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_f6a297b8-4a83-479b-b0df-a02278728e52" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6ec79e54-c485-46c9-a6b5-984899612383" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_f6a297b8-4a83-479b-b0df-a02278728e52" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_6fb132ff-fd11-4ffe-ae84-9a8d9f583216" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationAcquisitionRelatedCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6ec79e54-c485-46c9-a6b5-984899612383" xlink:to="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_6fb132ff-fd11-4ffe-ae84-9a8d9f583216" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c4ce67b7-3959-4c4d-a75c-4be9703bf1b7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6ec79e54-c485-46c9-a6b5-984899612383" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c4ce67b7-3959-4c4d-a75c-4be9703bf1b7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_011b3926-58e4-4a26-9f9a-58f8f8a433e9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c4ce67b7-3959-4c4d-a75c-4be9703bf1b7" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_011b3926-58e4-4a26-9f9a-58f8f8a433e9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_011b3926-58e4-4a26-9f9a-58f8f8a433e9_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_011b3926-58e4-4a26-9f9a-58f8f8a433e9" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_011b3926-58e4-4a26-9f9a-58f8f8a433e9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_f8dd8931-0d98-446d-a2c3-eeeac6a83116" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_011b3926-58e4-4a26-9f9a-58f8f8a433e9" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_f8dd8931-0d98-446d-a2c3-eeeac6a83116" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CaesarsEntertainmentCorporationMember_e2c1e451-e633-4cca-b132-13652a11a840" xlink:href="eri-20200630.xsd#eri_CaesarsEntertainmentCorporationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_f8dd8931-0d98-446d-a2c3-eeeac6a83116" xlink:to="loc_eri_CaesarsEntertainmentCorporationMember_e2c1e451-e633-4cca-b132-13652a11a840" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_b93c5be4-fb9f-4628-b16f-ef8d74466c01" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityInterestIssuedOrIssuableByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c4ce67b7-3959-4c4d-a75c-4be9703bf1b7" xlink:to="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_b93c5be4-fb9f-4628-b16f-ef8d74466c01" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_b93c5be4-fb9f-4628-b16f-ef8d74466c01_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityInterestIssuedOrIssuableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_b93c5be4-fb9f-4628-b16f-ef8d74466c01" xlink:to="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_b93c5be4-fb9f-4628-b16f-ef8d74466c01_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_6f3b12fe-e2c0-4416-9f7a-6f4b38fab3b2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityInterestIssuedOrIssuableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_b93c5be4-fb9f-4628-b16f-ef8d74466c01" xlink:to="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_6f3b12fe-e2c0-4416-9f7a-6f4b38fab3b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_b065b99f-5873-45f0-8ce3-7707c486b678" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_6f3b12fe-e2c0-4416-9f7a-6f4b38fab3b2" xlink:to="loc_us-gaap_CommonStockMember_b065b99f-5873-45f0-8ce3-7707c486b678" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_3f214c11-c6ff-44db-804f-74cbae8b272d" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c4ce67b7-3959-4c4d-a75c-4be9703bf1b7" xlink:to="loc_srt_ConsolidatedEntitiesAxis_3f214c11-c6ff-44db-804f-74cbae8b272d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_3f214c11-c6ff-44db-804f-74cbae8b272d_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_3f214c11-c6ff-44db-804f-74cbae8b272d" xlink:to="loc_srt_ConsolidatedEntitiesDomain_3f214c11-c6ff-44db-804f-74cbae8b272d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_fdd56aa8-8008-42f1-95e0-87a4e5da694a" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_3f214c11-c6ff-44db-804f-74cbae8b272d" xlink:to="loc_srt_ConsolidatedEntitiesDomain_fdd56aa8-8008-42f1-95e0-87a4e5da694a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_FormerCaesarsEntertainmentCorporationStockholdersMember_b819f9ac-e503-4ad1-ad39-9e1f9a354e26" xlink:href="eri-20200630.xsd#eri_FormerCaesarsEntertainmentCorporationStockholdersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_fdd56aa8-8008-42f1-95e0-87a4e5da694a" xlink:to="loc_eri_FormerCaesarsEntertainmentCorporationStockholdersMember_b819f9ac-e503-4ad1-ad39-9e1f9a354e26" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_fbe20a11-13cc-4fc4-a027-8a61d98bda98" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c4ce67b7-3959-4c4d-a75c-4be9703bf1b7" xlink:to="loc_us-gaap_DebtInstrumentAxis_fbe20a11-13cc-4fc4-a027-8a61d98bda98" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_fbe20a11-13cc-4fc4-a027-8a61d98bda98_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_fbe20a11-13cc-4fc4-a027-8a61d98bda98" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_fbe20a11-13cc-4fc4-a027-8a61d98bda98_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_2b1cf9df-6637-4e06-817e-4a106eb723d7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_fbe20a11-13cc-4fc4-a027-8a61d98bda98" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_2b1cf9df-6637-4e06-817e-4a106eb723d7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_ConvertibleNotes5Due2024Member_4e01a0c3-f4a8-46ff-b827-9593087378c2" xlink:href="eri-20200630.xsd#eri_ConvertibleNotes5Due2024Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_2b1cf9df-6637-4e06-817e-4a106eb723d7" xlink:to="loc_eri_ConvertibleNotes5Due2024Member_4e01a0c3-f4a8-46ff-b827-9593087378c2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_65bf5a41-3f81-42f5-a61f-8490685e551c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c4ce67b7-3959-4c4d-a75c-4be9703bf1b7" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_65bf5a41-3f81-42f5-a61f-8490685e551c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_65bf5a41-3f81-42f5-a61f-8490685e551c_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_65bf5a41-3f81-42f5-a61f-8490685e551c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_65bf5a41-3f81-42f5-a61f-8490685e551c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_f4ded10f-8fe1-4d50-90f8-03b9df8f41a1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_65bf5a41-3f81-42f5-a61f-8490685e551c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_f4ded10f-8fe1-4d50-90f8-03b9df8f41a1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_3f1ff8e8-7309-4852-ab0b-2eaea9588eab" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_f4ded10f-8fe1-4d50-90f8-03b9df8f41a1" xlink:to="loc_us-gaap_SeniorNotesMember_3f1ff8e8-7309-4852-ab0b-2eaea9588eab" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_39eca7e2-84cf-4a04-9128-520de7e94709" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_c4ce67b7-3959-4c4d-a75c-4be9703bf1b7" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_39eca7e2-84cf-4a04-9128-520de7e94709" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_39eca7e2-84cf-4a04-9128-520de7e94709_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_39eca7e2-84cf-4a04-9128-520de7e94709" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_39eca7e2-84cf-4a04-9128-520de7e94709_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_08385849-58b3-401c-a57b-c329309679fe" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_39eca7e2-84cf-4a04-9128-520de7e94709" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_08385849-58b3-401c-a57b-c329309679fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_30b8150b-600c-4d0f-a6ee-b389c880578c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_08385849-58b3-401c-a57b-c329309679fe" xlink:to="loc_us-gaap_SubsequentEventMember_30b8150b-600c-4d0f-a6ee-b389c880578c" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/MergerRelatedTransactionsDebtandFinancingActivityDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#MergerRelatedTransactionsDebtandFinancingActivityDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/MergerRelatedTransactionsDebtandFinancingActivityDetails" xlink:type="extended" id="ibfde755c55e042c796d1be8e81e09606_MergerRelatedTransactionsDebtandFinancingActivityDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_f464e874-29ae-4d7a-bd9d-b4581c4011d6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_07a3f46c-7e88-4ee7-94d8-630b5abded67" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f464e874-29ae-4d7a-bd9d-b4581c4011d6" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_07a3f46c-7e88-4ee7-94d8-630b5abded67" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_4b6af986-7433-4a5d-8519-4c32394f786c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f464e874-29ae-4d7a-bd9d-b4581c4011d6" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_4b6af986-7433-4a5d-8519-4c32394f786c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityExpirationPeriod_bff7a619-7995-40e9-81a4-da643d6fd06e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityExpirationPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f464e874-29ae-4d7a-bd9d-b4581c4011d6" xlink:to="loc_us-gaap_LineOfCreditFacilityExpirationPeriod_bff7a619-7995-40e9-81a4-da643d6fd06e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_460620d7-76c2-4bee-af66-dc3a10bb2fef" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f464e874-29ae-4d7a-bd9d-b4581c4011d6" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_460620d7-76c2-4bee-af66-dc3a10bb2fef" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_LineOfCreditFacilityAccordionFeatureIncreaseLimit_0170e899-4e9e-4726-a675-eef4819ffc9b" xlink:href="eri-20200630.xsd#eri_LineOfCreditFacilityAccordionFeatureIncreaseLimit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f464e874-29ae-4d7a-bd9d-b4581c4011d6" xlink:to="loc_eri_LineOfCreditFacilityAccordionFeatureIncreaseLimit_0170e899-4e9e-4726-a675-eef4819ffc9b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_LineOfCreditFacilityAccordionFeatureHigherBorrowingCapacityOption_fe6cec4b-0120-4511-8897-3fb3cce8a92d" xlink:href="eri-20200630.xsd#eri_LineOfCreditFacilityAccordionFeatureHigherBorrowingCapacityOption"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f464e874-29ae-4d7a-bd9d-b4581c4011d6" xlink:to="loc_eri_LineOfCreditFacilityAccordionFeatureHigherBorrowingCapacityOption_fe6cec4b-0120-4511-8897-3fb3cce8a92d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_6398322c-7c89-491e-89da-83ea2a8f417d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfLinesOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f464e874-29ae-4d7a-bd9d-b4581c4011d6" xlink:to="loc_us-gaap_RepaymentsOfLinesOfCredit_6398322c-7c89-491e-89da-83ea2a8f417d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_04a2d3eb-2b19-4979-bd36-695c8cd41f3d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_f464e874-29ae-4d7a-bd9d-b4581c4011d6" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_04a2d3eb-2b19-4979-bd36-695c8cd41f3d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_fcb84871-3dff-4ddf-a6cd-5772d584290e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_04a2d3eb-2b19-4979-bd36-695c8cd41f3d" xlink:to="loc_us-gaap_DebtInstrumentAxis_fcb84871-3dff-4ddf-a6cd-5772d584290e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_fcb84871-3dff-4ddf-a6cd-5772d584290e_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_fcb84871-3dff-4ddf-a6cd-5772d584290e" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_fcb84871-3dff-4ddf-a6cd-5772d584290e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_b939aa39-76cc-44c2-b932-8d8adf422771" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_fcb84871-3dff-4ddf-a6cd-5772d584290e" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_b939aa39-76cc-44c2-b932-8d8adf422771" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes6250Due2025Member_c9a94dde-7ff4-4733-9d5c-09ac15bc9b65" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes6250Due2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b939aa39-76cc-44c2-b932-8d8adf422771" xlink:to="loc_eri_SeniorSecuredNotes6250Due2025Member_c9a94dde-7ff4-4733-9d5c-09ac15bc9b65" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes8125Due2027Member_f5bea234-dbe0-4d3f-b783-88e9b3d80b47" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes8125Due2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b939aa39-76cc-44c2-b932-8d8adf422771" xlink:to="loc_eri_SeniorSecuredNotes8125Due2027Member_f5bea234-dbe0-4d3f-b783-88e9b3d80b47" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes5750Due2025Member_0745e368-6a65-460b-8251-ca1c41cefc5c" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes5750Due2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b939aa39-76cc-44c2-b932-8d8adf422771" xlink:to="loc_eri_SeniorSecuredNotes5750Due2025Member_0745e368-6a65-460b-8251-ca1c41cefc5c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_ConvertibleNotes5Due2024Member_e90a2a4a-a25a-4bd1-815d-5aa6f73a4366" xlink:href="eri-20200630.xsd#eri_ConvertibleNotes5Due2024Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b939aa39-76cc-44c2-b932-8d8adf422771" xlink:to="loc_eri_ConvertibleNotes5Due2024Member_e90a2a4a-a25a-4bd1-815d-5aa6f73a4366" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorNotes6Due2025Member_99db0c6c-6fc0-48ee-83f6-85daa21b1e3f" xlink:href="eri-20200630.xsd#eri_SeniorNotes6Due2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b939aa39-76cc-44c2-b932-8d8adf422771" xlink:to="loc_eri_SeniorNotes6Due2025Member_99db0c6c-6fc0-48ee-83f6-85daa21b1e3f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorNotes7Due2023Member_f5c1b8fc-81fe-48a0-8f36-75b0d1ceb2e6" xlink:href="eri-20200630.xsd#eri_SeniorNotes7Due2023Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b939aa39-76cc-44c2-b932-8d8adf422771" xlink:to="loc_eri_SeniorNotes7Due2023Member_f5c1b8fc-81fe-48a0-8f36-75b0d1ceb2e6" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_6c81723b-f2d9-44eb-8172-d290709ae70a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_04a2d3eb-2b19-4979-bd36-695c8cd41f3d" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_6c81723b-f2d9-44eb-8172-d290709ae70a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_6c81723b-f2d9-44eb-8172-d290709ae70a_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_6c81723b-f2d9-44eb-8172-d290709ae70a" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_6c81723b-f2d9-44eb-8172-d290709ae70a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_178eddcd-fa5b-42ac-ac95-86cf1d86a1fc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_6c81723b-f2d9-44eb-8172-d290709ae70a" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_178eddcd-fa5b-42ac-ac95-86cf1d86a1fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_d5888e92-2846-4a22-a8c0-b23227cf0db2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_178eddcd-fa5b-42ac-ac95-86cf1d86a1fc" xlink:to="loc_us-gaap_SeniorNotesMember_d5888e92-2846-4a22-a8c0-b23227cf0db2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_88d43c85-365d-4e75-8169-c005f3f35a91" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_178eddcd-fa5b-42ac-ac95-86cf1d86a1fc" xlink:to="loc_us-gaap_LineOfCreditMember_88d43c85-365d-4e75-8169-c005f3f35a91" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_1b1a76bf-04f0-49dd-a0ad-a8f9b5060a12" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_04a2d3eb-2b19-4979-bd36-695c8cd41f3d" xlink:to="loc_us-gaap_CreditFacilityAxis_1b1a76bf-04f0-49dd-a0ad-a8f9b5060a12" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_1b1a76bf-04f0-49dd-a0ad-a8f9b5060a12_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_1b1a76bf-04f0-49dd-a0ad-a8f9b5060a12" xlink:to="loc_us-gaap_CreditFacilityDomain_1b1a76bf-04f0-49dd-a0ad-a8f9b5060a12_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_8cc42aac-a066-4b44-bc44-256dd54d54cb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_1b1a76bf-04f0-49dd-a0ad-a8f9b5060a12" xlink:to="loc_us-gaap_CreditFacilityDomain_8cc42aac-a066-4b44-bc44-256dd54d54cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_4f379f71-404b-4c08-85b4-9133645158d4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_8cc42aac-a066-4b44-bc44-256dd54d54cb" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_4f379f71-404b-4c08-85b4-9133645158d4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BridgeLoanMember_1e8ebce1-2252-4f02-8d6f-f5d7dfa477e6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BridgeLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_8cc42aac-a066-4b44-bc44-256dd54d54cb" xlink:to="loc_us-gaap_BridgeLoanMember_1e8ebce1-2252-4f02-8d6f-f5d7dfa477e6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_0da77c2d-00b6-4f17-8cb8-0bd2e4055eab" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_04a2d3eb-2b19-4979-bd36-695c8cd41f3d" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_0da77c2d-00b6-4f17-8cb8-0bd2e4055eab" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_0da77c2d-00b6-4f17-8cb8-0bd2e4055eab_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_0da77c2d-00b6-4f17-8cb8-0bd2e4055eab" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_0da77c2d-00b6-4f17-8cb8-0bd2e4055eab_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_f5f39563-c92c-4d90-84ef-f4e89b21369f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_0da77c2d-00b6-4f17-8cb8-0bd2e4055eab" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_f5f39563-c92c-4d90-84ef-f4e89b21369f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_0874a1d7-00b1-40dd-ac44-bfc49c3110f5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_f5f39563-c92c-4d90-84ef-f4e89b21369f" xlink:to="loc_us-gaap_SubsequentEventMember_0874a1d7-00b1-40dd-ac44-bfc49c3110f5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_00df943c-4f37-4bff-80fa-735c63e21002" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_04a2d3eb-2b19-4979-bd36-695c8cd41f3d" xlink:to="loc_dei_LegalEntityAxis_00df943c-4f37-4bff-80fa-735c63e21002" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_00df943c-4f37-4bff-80fa-735c63e21002_default" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_00df943c-4f37-4bff-80fa-735c63e21002" xlink:to="loc_dei_EntityDomain_00df943c-4f37-4bff-80fa-735c63e21002_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_92f00516-6cdc-48ce-b5f7-6492f5446070" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_00df943c-4f37-4bff-80fa-735c63e21002" xlink:to="loc_dei_EntityDomain_92f00516-6cdc-48ce-b5f7-6492f5446070" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CaesarsResortCollectionMember_f7f78fd5-f20d-451a-8eb8-800f9cb6d762" xlink:href="eri-20200630.xsd#eri_CaesarsResortCollectionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_92f00516-6cdc-48ce-b5f7-6492f5446070" xlink:to="loc_eri_CaesarsResortCollectionMember_f7f78fd5-f20d-451a-8eb8-800f9cb6d762" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/MergerRelatedTransactionsVICITransactionsDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#MergerRelatedTransactionsVICITransactionsDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/MergerRelatedTransactionsVICITransactionsDetails" xlink:type="extended" id="ibcf2d85e5dbb45d99f6f36e1133b8337_MergerRelatedTransactionsVICITransactionsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_087f5457-a236-4dc5-8ee5-d8bb4fabf8c3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAcquiredSalesTypeLeaseReceivable_62d751c6-d727-4f3d-9284-694f0e1b3526" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationAcquiredSalesTypeLeaseReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_087f5457-a236-4dc5-8ee5-d8bb4fabf8c3" xlink:to="loc_us-gaap_BusinessCombinationAcquiredSalesTypeLeaseReceivable_62d751c6-d727-4f3d-9284-694f0e1b3526" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_BusinessCombinationProceedsFromLeaseAgreements_7994cb46-27f1-4835-b2b7-1e1bbe656288" xlink:href="eri-20200630.xsd#eri_BusinessCombinationProceedsFromLeaseAgreements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_087f5457-a236-4dc5-8ee5-d8bb4fabf8c3" xlink:to="loc_eri_BusinessCombinationProceedsFromLeaseAgreements_7994cb46-27f1-4835-b2b7-1e1bbe656288" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_LessorCurrentBaseRent_60a09c25-d73a-4ba2-8bc8-6c2925eb087b" xlink:href="eri-20200630.xsd#eri_LessorCurrentBaseRent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_087f5457-a236-4dc5-8ee5-d8bb4fabf8c3" xlink:to="loc_eri_LessorCurrentBaseRent_60a09c25-d73a-4ba2-8bc8-6c2925eb087b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorSalesTypeLeaseTermOfContract1_d3fbe012-7bb0-4f99-8b2e-cb36c9aa36d5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LessorSalesTypeLeaseTermOfContract1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_087f5457-a236-4dc5-8ee5-d8bb4fabf8c3" xlink:to="loc_us-gaap_LessorSalesTypeLeaseTermOfContract1_d3fbe012-7bb0-4f99-8b2e-cb36c9aa36d5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_01636e80-a1c3-49a4-8331-078bf31f66be" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_087f5457-a236-4dc5-8ee5-d8bb4fabf8c3" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_01636e80-a1c3-49a4-8331-078bf31f66be" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_9efb1849-1b2c-43fb-bd34-7dcf1394dad8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_01636e80-a1c3-49a4-8331-078bf31f66be" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_9efb1849-1b2c-43fb-bd34-7dcf1394dad8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9efb1849-1b2c-43fb-bd34-7dcf1394dad8_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_9efb1849-1b2c-43fb-bd34-7dcf1394dad8" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9efb1849-1b2c-43fb-bd34-7dcf1394dad8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_dc686068-2987-40dd-aa54-29cd35d2c88b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_9efb1849-1b2c-43fb-bd34-7dcf1394dad8" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_dc686068-2987-40dd-aa54-29cd35d2c88b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_VICIPropertiesLPMember_c6ef47a5-b222-4c13-bdb1-bdabb54e778a" xlink:href="eri-20200630.xsd#eri_VICIPropertiesLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_dc686068-2987-40dd-aa54-29cd35d2c88b" xlink:to="loc_eri_VICIPropertiesLPMember_c6ef47a5-b222-4c13-bdb1-bdabb54e778a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseArrangementTypeAxis_04a381c8-3e98-4d69-876b-028d22a70550" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseArrangementTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_01636e80-a1c3-49a4-8331-078bf31f66be" xlink:to="loc_us-gaap_LeaseArrangementTypeAxis_04a381c8-3e98-4d69-876b-028d22a70550" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseArrangementTypeDomain_04a381c8-3e98-4d69-876b-028d22a70550_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseArrangementTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LeaseArrangementTypeAxis_04a381c8-3e98-4d69-876b-028d22a70550" xlink:to="loc_us-gaap_LeaseArrangementTypeDomain_04a381c8-3e98-4d69-876b-028d22a70550_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseArrangementTypeDomain_2c1cba57-d66f-4a81-8f78-5b6279d0df2a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseArrangementTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LeaseArrangementTypeAxis_04a381c8-3e98-4d69-876b-028d22a70550" xlink:to="loc_us-gaap_LeaseArrangementTypeDomain_2c1cba57-d66f-4a81-8f78-5b6279d0df2a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_HarrahsLasVegasLeaseMember_8087ea00-0c14-4e1c-8f2d-88ee89ef0dc1" xlink:href="eri-20200630.xsd#eri_HarrahsLasVegasLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LeaseArrangementTypeDomain_2c1cba57-d66f-4a81-8f78-5b6279d0df2a" xlink:to="loc_eri_HarrahsLasVegasLeaseMember_8087ea00-0c14-4e1c-8f2d-88ee89ef0dc1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CaesarsPalaceLasVegasLeaseMember_5f3eb275-38a7-449f-a94e-bba19337aac2" xlink:href="eri-20200630.xsd#eri_CaesarsPalaceLasVegasLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LeaseArrangementTypeDomain_2c1cba57-d66f-4a81-8f78-5b6279d0df2a" xlink:to="loc_eri_CaesarsPalaceLasVegasLeaseMember_5f3eb275-38a7-449f-a94e-bba19337aac2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_NonCaesarsPalaceLasVegasLeaseMember_81c8ddd6-126e-4ce4-b55f-fa9242f0f277" xlink:href="eri-20200630.xsd#eri_NonCaesarsPalaceLasVegasLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LeaseArrangementTypeDomain_2c1cba57-d66f-4a81-8f78-5b6279d0df2a" xlink:to="loc_eri_NonCaesarsPalaceLasVegasLeaseMember_81c8ddd6-126e-4ce4-b55f-fa9242f0f277" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/Leases" xlink:type="simple" xlink:href="eri-20200630.xsd#Leases"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/Leases" xlink:type="extended" id="idff2b6da143045d8b4342241a5503804_Leases"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LeasesTables" xlink:type="simple" xlink:href="eri-20200630.xsd#LeasesTables"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LeasesTables" xlink:type="extended" id="i13bc5bba3b0f4a7885e4256f1a942ba8_LeasesTables"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LeasesAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#LeasesAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LeasesAdditionalInformationDetails" xlink:type="extended" id="i690d350e33874aec9c51365ee0566b9a_LeasesAdditionalInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_58880b7f-a461-415f-a169-dc4708713fe0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_LesseeOperatingLeaseAndFinanceLeaseOfOptionToExtendLeaseTerm_0b0ad37e-f1d3-41cd-afcc-e6f79c17b801" xlink:href="eri-20200630.xsd#eri_LesseeOperatingLeaseAndFinanceLeaseOfOptionToExtendLeaseTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_58880b7f-a461-415f-a169-dc4708713fe0" xlink:to="loc_eri_LesseeOperatingLeaseAndFinanceLeaseOfOptionToExtendLeaseTerm_0b0ad37e-f1d3-41cd-afcc-e6f79c17b801" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_ShortTermAndVariableLeaseExpense_03957441-1022-408e-947d-2aeef6a606b0" xlink:href="eri-20200630.xsd#eri_ShortTermAndVariableLeaseExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_58880b7f-a461-415f-a169-dc4708713fe0" xlink:to="loc_eri_ShortTermAndVariableLeaseExpense_03957441-1022-408e-947d-2aeef6a606b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_9b4479d3-bee3-4595-b5d7-4daf9c596d80" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_58880b7f-a461-415f-a169-dc4708713fe0" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_9b4479d3-bee3-4595-b5d7-4daf9c596d80" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_4b0644ea-5837-42cb-b904-7edd265b83a7" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_9b4479d3-bee3-4595-b5d7-4daf9c596d80" xlink:to="loc_srt_RangeAxis_4b0644ea-5837-42cb-b904-7edd265b83a7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_4b0644ea-5837-42cb-b904-7edd265b83a7_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_4b0644ea-5837-42cb-b904-7edd265b83a7" xlink:to="loc_srt_RangeMember_4b0644ea-5837-42cb-b904-7edd265b83a7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_1c196740-a37c-4445-a277-6a727d669d9a" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_4b0644ea-5837-42cb-b904-7edd265b83a7" xlink:to="loc_srt_RangeMember_1c196740-a37c-4445-a277-6a727d669d9a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_e574638b-d1be-4935-a4d8-7936c5f8f643" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_1c196740-a37c-4445-a277-6a727d669d9a" xlink:to="loc_srt_MinimumMember_e574638b-d1be-4935-a4d8-7936c5f8f643" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_bb845762-8cfd-4b99-b16e-d3577222f800" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_1c196740-a37c-4445-a277-6a727d669d9a" xlink:to="loc_srt_MaximumMember_bb845762-8cfd-4b99-b16e-d3577222f800" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_122d207e-6dca-4c6b-947e-d681f8278db0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_9b4479d3-bee3-4595-b5d7-4daf9c596d80" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_122d207e-6dca-4c6b-947e-d681f8278db0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_122d207e-6dca-4c6b-947e-d681f8278db0_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_122d207e-6dca-4c6b-947e-d681f8278db0" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_122d207e-6dca-4c6b-947e-d681f8278db0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_8fc3aadb-0c2d-4fa3-abd1-56d95d08d747" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_122d207e-6dca-4c6b-947e-d681f8278db0" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_8fc3aadb-0c2d-4fa3-abd1-56d95d08d747" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenseMember_4a2aff6f-5f41-4f4a-920a-e9477b6eb04e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_8fc3aadb-0c2d-4fa3-abd1-56d95d08d747" xlink:to="loc_us-gaap_OperatingExpenseMember_4a2aff6f-5f41-4f4a-920a-e9477b6eb04e" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LeasesComponentsofLeaseExpenseDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#LeasesComponentsofLeaseExpenseDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LeasesComponentsofLeaseExpenseDetails" xlink:type="extended" id="i88f3132277b44bb7bf5d8a72929a3d1b_LeasesComponentsofLeaseExpenseDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_da9c277e-7b6b-459c-a032-9040d5eb23cc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_OperatingLeaseExpenseAbstract_0f2bd0da-e5bb-49d2-9542-d5a53267e0ab" xlink:href="eri-20200630.xsd#eri_OperatingLeaseExpenseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_da9c277e-7b6b-459c-a032-9040d5eb23cc" xlink:to="loc_eri_OperatingLeaseExpenseAbstract_0f2bd0da-e5bb-49d2-9542-d5a53267e0ab" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseExpense_ad04c10c-a3ae-4c8d-8890-e5dc02cc07d4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_OperatingLeaseExpenseAbstract_0f2bd0da-e5bb-49d2-9542-d5a53267e0ab" xlink:to="loc_us-gaap_OperatingLeaseExpense_ad04c10c-a3ae-4c8d-8890-e5dc02cc07d4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_ShortTermAndVariableLeaseExpense_c462d60f-9fff-44c4-b88d-52d02bb82173" xlink:href="eri-20200630.xsd#eri_ShortTermAndVariableLeaseExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_OperatingLeaseExpenseAbstract_0f2bd0da-e5bb-49d2-9542-d5a53267e0ab" xlink:to="loc_eri_ShortTermAndVariableLeaseExpense_c462d60f-9fff-44c4-b88d-52d02bb82173" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_FinanceLeaseExpensesAbstract_e2af5c3d-6e0a-44f8-9874-857ee43b4417" xlink:href="eri-20200630.xsd#eri_FinanceLeaseExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_da9c277e-7b6b-459c-a032-9040d5eb23cc" xlink:to="loc_eri_FinanceLeaseExpensesAbstract_e2af5c3d-6e0a-44f8-9874-857ee43b4417" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_49fbba5b-ae33-4454-a4f9-10718d64d15d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseInterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FinanceLeaseExpensesAbstract_e2af5c3d-6e0a-44f8-9874-857ee43b4417" xlink:to="loc_us-gaap_FinanceLeaseInterestExpense_49fbba5b-ae33-4454-a4f9-10718d64d15d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_96e1d966-3ee8-4ca1-ad7c-cb203cacb53c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FinanceLeaseExpensesAbstract_e2af5c3d-6e0a-44f8-9874-857ee43b4417" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_96e1d966-3ee8-4ca1-ad7c-cb203cacb53c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_d4f7103c-ba58-41db-bed7-a6593c463829" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_da9c277e-7b6b-459c-a032-9040d5eb23cc" xlink:to="loc_us-gaap_LeaseCost_d4f7103c-ba58-41db-bed7-a6593c463829" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_76c56c4e-6efe-4dad-97a6-c2994acfa6d6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_da9c277e-7b6b-459c-a032-9040d5eb23cc" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_76c56c4e-6efe-4dad-97a6-c2994acfa6d6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_8fbfe207-ba23-46d4-a948-e3684f1f0d7e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_76c56c4e-6efe-4dad-97a6-c2994acfa6d6" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_8fbfe207-ba23-46d4-a948-e3684f1f0d7e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_8fbfe207-ba23-46d4-a948-e3684f1f0d7e_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_8fbfe207-ba23-46d4-a948-e3684f1f0d7e" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_8fbfe207-ba23-46d4-a948-e3684f1f0d7e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_ab4eaa1f-0848-4a31-ab8a-111c28221067" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_8fbfe207-ba23-46d4-a948-e3684f1f0d7e" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_ab4eaa1f-0848-4a31-ab8a-111c28221067" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenseMember_4160338e-b3e8-415a-a999-c2fe58ac9ba1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_ab4eaa1f-0848-4a31-ab8a-111c28221067" xlink:to="loc_us-gaap_OperatingExpenseMember_4160338e-b3e8-415a-a999-c2fe58ac9ba1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseMember_a08f3a7a-a9ee-4313-b6bc-96243033b42e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_ab4eaa1f-0848-4a31-ab8a-111c28221067" xlink:to="loc_us-gaap_InterestExpenseMember_a08f3a7a-a9ee-4313-b6bc-96243033b42e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_DepreciationAndAmortizationExpenseMember_b1df7551-1505-49ad-ba82-66b4e7d795c1" xlink:href="eri-20200630.xsd#eri_DepreciationAndAmortizationExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_ab4eaa1f-0848-4a31-ab8a-111c28221067" xlink:to="loc_eri_DepreciationAndAmortizationExpenseMember_b1df7551-1505-49ad-ba82-66b4e7d795c1" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LeasesSupplementalCashFlowInformationRelatedtoLeasesDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#LeasesSupplementalCashFlowInformationRelatedtoLeasesDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LeasesSupplementalCashFlowInformationRelatedtoLeasesDetails" xlink:type="extended" id="i20593b9854884d0daacaa6cfc32e489f_LeasesSupplementalCashFlowInformationRelatedtoLeasesDetails"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/RevenueRecognition" xlink:type="simple" xlink:href="eri-20200630.xsd#RevenueRecognition"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/RevenueRecognition" xlink:type="extended" id="id44fbfa4645544cfa02a464b8068d8fe_RevenueRecognition"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/RevenueRecognitionTables" xlink:type="simple" xlink:href="eri-20200630.xsd#RevenueRecognitionTables"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/RevenueRecognitionTables" xlink:type="extended" id="iabddd33e4d124327ada2afe0218f9057_RevenueRecognitionTables"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/RevenueRecognitionSummaryofNetRevenuesDisaggregatedTypeofRevenueandReportableSegmentDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#RevenueRecognitionSummaryofNetRevenuesDisaggregatedTypeofRevenueandReportableSegmentDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/RevenueRecognitionSummaryofNetRevenuesDisaggregatedTypeofRevenueandReportableSegmentDetails" xlink:type="extended" id="i41d83a91d23f468a9fecd4a7255afcb0_RevenueRecognitionSummaryofNetRevenuesDisaggregatedTypeofRevenueandReportableSegmentDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_e867b187-f7a7-44d5-808e-1b49ccc54e71" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_70e84fa6-002a-4b22-9950-f0daa9f05f07" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_e867b187-f7a7-44d5-808e-1b49ccc54e71" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_70e84fa6-002a-4b22-9950-f0daa9f05f07" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_b4553138-1d2f-4ab6-bcac-975402679388" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_e867b187-f7a7-44d5-808e-1b49ccc54e71" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_b4553138-1d2f-4ab6-bcac-975402679388" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_270336ce-639d-4818-8754-f5f6e64260a3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_b4553138-1d2f-4ab6-bcac-975402679388" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_270336ce-639d-4818-8754-f5f6e64260a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_270336ce-639d-4818-8754-f5f6e64260a3_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_270336ce-639d-4818-8754-f5f6e64260a3" xlink:to="loc_us-gaap_SegmentDomain_270336ce-639d-4818-8754-f5f6e64260a3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_078a38c5-9b8c-40e2-8554-ca1e88499d5a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_270336ce-639d-4818-8754-f5f6e64260a3" xlink:to="loc_us-gaap_SegmentDomain_078a38c5-9b8c-40e2-8554-ca1e88499d5a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_WestSegmentMember_f418bb6a-718a-447f-aa24-ea4d7d5f6798" xlink:href="eri-20200630.xsd#eri_WestSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_078a38c5-9b8c-40e2-8554-ca1e88499d5a" xlink:to="loc_eri_WestSegmentMember_f418bb6a-718a-447f-aa24-ea4d7d5f6798" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MidwestSegmentMember_e1e122b8-1d1e-474e-8cc5-6ad987efe782" xlink:href="eri-20200630.xsd#eri_MidwestSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_078a38c5-9b8c-40e2-8554-ca1e88499d5a" xlink:to="loc_eri_MidwestSegmentMember_e1e122b8-1d1e-474e-8cc5-6ad987efe782" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SouthSegmentMember_676d74c6-b8c7-4e98-b5bb-a0c19b89ace8" xlink:href="eri-20200630.xsd#eri_SouthSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_078a38c5-9b8c-40e2-8554-ca1e88499d5a" xlink:to="loc_eri_SouthSegmentMember_676d74c6-b8c7-4e98-b5bb-a0c19b89ace8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_EastSegmentMember_d5250940-e540-4955-92f0-78f8ae08d7b9" xlink:href="eri-20200630.xsd#eri_EastSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_078a38c5-9b8c-40e2-8554-ca1e88499d5a" xlink:to="loc_eri_EastSegmentMember_d5250940-e540-4955-92f0-78f8ae08d7b9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CentralSegmentMember_7d6515d4-e0a5-482f-b062-42518dc2f7a4" xlink:href="eri-20200630.xsd#eri_CentralSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_078a38c5-9b8c-40e2-8554-ca1e88499d5a" xlink:to="loc_eri_CentralSegmentMember_7d6515d4-e0a5-482f-b062-42518dc2f7a4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_b96cfafa-2825-461a-98ad-d322ffe905f3" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_b4553138-1d2f-4ab6-bcac-975402679388" xlink:to="loc_srt_ConsolidationItemsAxis_b96cfafa-2825-461a-98ad-d322ffe905f3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_b96cfafa-2825-461a-98ad-d322ffe905f3_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_b96cfafa-2825-461a-98ad-d322ffe905f3" xlink:to="loc_srt_ConsolidationItemsDomain_b96cfafa-2825-461a-98ad-d322ffe905f3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_74df7b55-f165-448d-8f8a-608cff4bb7a5" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_b96cfafa-2825-461a-98ad-d322ffe905f3" xlink:to="loc_srt_ConsolidationItemsDomain_74df7b55-f165-448d-8f8a-608cff4bb7a5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_a2137e4f-47b9-4a5a-9d63-889e48b42f1c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_74df7b55-f165-448d-8f8a-608cff4bb7a5" xlink:to="loc_us-gaap_OperatingSegmentsMember_a2137e4f-47b9-4a5a-9d63-889e48b42f1c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateNonSegmentMember_1289d9b2-0d2e-4859-adf5-6550f78ebd94" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CorporateNonSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_74df7b55-f165-448d-8f8a-608cff4bb7a5" xlink:to="loc_us-gaap_CorporateNonSegmentMember_1289d9b2-0d2e-4859-adf5-6550f78ebd94" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_c59330c7-b684-4342-a96e-afe4cb572bbd" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_b4553138-1d2f-4ab6-bcac-975402679388" xlink:to="loc_srt_ProductOrServiceAxis_c59330c7-b684-4342-a96e-afe4cb572bbd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_c59330c7-b684-4342-a96e-afe4cb572bbd_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_c59330c7-b684-4342-a96e-afe4cb572bbd" xlink:to="loc_srt_ProductsAndServicesDomain_c59330c7-b684-4342-a96e-afe4cb572bbd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_167b89e2-7181-438c-8428-c7afd58d3a68" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_c59330c7-b684-4342-a96e-afe4cb572bbd" xlink:to="loc_srt_ProductsAndServicesDomain_167b89e2-7181-438c-8428-c7afd58d3a68" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CasinoMember_4ea28dd6-3f02-432a-a4b3-4077f0065e5f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CasinoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_167b89e2-7181-438c-8428-c7afd58d3a68" xlink:to="loc_us-gaap_CasinoMember_4ea28dd6-3f02-432a-a4b3-4077f0065e5f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FoodAndBeverageMember_e42478db-fd94-4f91-b6f5-151578ea903b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FoodAndBeverageMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_167b89e2-7181-438c-8428-c7afd58d3a68" xlink:to="loc_us-gaap_FoodAndBeverageMember_e42478db-fd94-4f91-b6f5-151578ea903b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HotelOwnedMember_c0b0b756-b782-4565-8af5-04c6cfb2f124" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HotelOwnedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_167b89e2-7181-438c-8428-c7afd58d3a68" xlink:to="loc_us-gaap_HotelOwnedMember_c0b0b756-b782-4565-8af5-04c6cfb2f124" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductAndServiceOtherMember_3fc57339-3682-4bc5-96af-162aea4d98fa" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProductAndServiceOtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_167b89e2-7181-438c-8428-c7afd58d3a68" xlink:to="loc_us-gaap_ProductAndServiceOtherMember_3fc57339-3682-4bc5-96af-162aea4d98fa" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/RevenueRecognitionSummaryofActivityRelatedtoContractandContractRelatedLiabilitiesDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#RevenueRecognitionSummaryofActivityRelatedtoContractandContractRelatedLiabilitiesDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/RevenueRecognitionSummaryofActivityRelatedtoContractandContractRelatedLiabilitiesDetails" xlink:type="extended" id="iea7ff191e97e40d5b39cd8c57065900a_RevenueRecognitionSummaryofActivityRelatedtoContractandContractRelatedLiabilitiesDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_566c291e-d081-4ec9-86df-fcce8d0f8a27" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_f4ca0350-2e1b-40d5-bffd-38f3bda7b536" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_566c291e-d081-4ec9-86df-fcce8d0f8a27" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_f4ca0350-2e1b-40d5-bffd-38f3bda7b536" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_792fa4c2-6bd8-457f-a453-4e3fc301989f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_aaf7df7c-cd39-4a3c-b4fb-770182954054" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_566c291e-d081-4ec9-86df-fcce8d0f8a27" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_aaf7df7c-cd39-4a3c-b4fb-770182954054" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_303b453e-2319-43f1-b197-ccede13e2828" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_566c291e-d081-4ec9-86df-fcce8d0f8a27" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_303b453e-2319-43f1-b197-ccede13e2828" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByLiabilityClassAxis_58f2ea6d-f871-4a61-bf4e-45b1bd684e3f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByLiabilityClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_303b453e-2319-43f1-b197-ccede13e2828" xlink:to="loc_us-gaap_FairValueByLiabilityClassAxis_58f2ea6d-f871-4a61-bf4e-45b1bd684e3f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_58f2ea6d-f871-4a61-bf4e-45b1bd684e3f_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_58f2ea6d-f871-4a61-bf4e-45b1bd684e3f" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_58f2ea6d-f871-4a61-bf4e-45b1bd684e3f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_66e04d3d-4fc6-43f0-8876-cf45253a0329" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_58f2ea6d-f871-4a61-bf4e-45b1bd684e3f" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_66e04d3d-4fc6-43f0-8876-cf45253a0329" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_OutstandingChipLiabilityMember_b7221fde-b26e-4615-9247-03df964b7782" xlink:href="eri-20200630.xsd#eri_OutstandingChipLiabilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_66e04d3d-4fc6-43f0-8876-cf45253a0329" xlink:to="loc_eri_OutstandingChipLiabilityMember_b7221fde-b26e-4615-9247-03df964b7782" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_PlayerLoyaltyLiabilityMember_77cc2f0a-d5d4-4664-816d-721e2411f0cb" xlink:href="eri-20200630.xsd#eri_PlayerLoyaltyLiabilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_66e04d3d-4fc6-43f0-8876-cf45253a0329" xlink:to="loc_eri_PlayerLoyaltyLiabilityMember_77cc2f0a-d5d4-4664-816d-721e2411f0cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CustomerDepositsAndOtherDeferredRevenueMember_329e8421-af0b-4b6a-95bb-d88f18fb5359" xlink:href="eri-20200630.xsd#eri_CustomerDepositsAndOtherDeferredRevenueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_66e04d3d-4fc6-43f0-8876-cf45253a0329" xlink:to="loc_eri_CustomerDepositsAndOtherDeferredRevenueMember_329e8421-af0b-4b6a-95bb-d88f18fb5359" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/AssetsHeldforSale" xlink:type="simple" xlink:href="eri-20200630.xsd#AssetsHeldforSale"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/AssetsHeldforSale" xlink:type="extended" id="ie74ff4d9175c4c2aae6d899145e88543_AssetsHeldforSale"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/AssetsHeldforSaleTables" xlink:type="simple" xlink:href="eri-20200630.xsd#AssetsHeldforSaleTables"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/AssetsHeldforSaleTables" xlink:type="extended" id="i7826ff38cbc9443793214a2e45c10989_AssetsHeldforSaleTables"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/AssetsHeldforSaleAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#AssetsHeldforSaleAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/AssetsHeldforSaleAdditionalInformationDetails" xlink:type="extended" id="ie625777fba394afd90fa7474ea1b5e47_AssetsHeldforSaleAdditionalInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_24ab0c5d-f193-4467-aa80-9ac2cbb9abbe" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_537025a3-e898-4956-9420-5e02033d042b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_24ab0c5d-f193-4467-aa80-9ac2cbb9abbe" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_537025a3-e898-4956-9420-5e02033d042b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal_fb45ca58-8213-43bd-b3e5-4d384012ed76" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_24ab0c5d-f193-4467-aa80-9ac2cbb9abbe" xlink:to="loc_us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal_fb45ca58-8213-43bd-b3e5-4d384012ed76" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfEquityMethodInvestments_3b02bb5c-96c9-4d66-88db-18c018d041b9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromSaleOfEquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_24ab0c5d-f193-4467-aa80-9ac2cbb9abbe" xlink:to="loc_us-gaap_ProceedsFromSaleOfEquityMethodInvestments_3b02bb5c-96c9-4d66-88db-18c018d041b9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_281a09e0-08cf-40b0-94b2-a38243f3bb5a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_24ab0c5d-f193-4467-aa80-9ac2cbb9abbe" xlink:to="loc_us-gaap_AssetImpairmentCharges_281a09e0-08cf-40b0-94b2-a38243f3bb5a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_02589822-751f-444f-b3a6-6fc4e2c9e9f8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_24ab0c5d-f193-4467-aa80-9ac2cbb9abbe" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_02589822-751f-444f-b3a6-6fc4e2c9e9f8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_d884bd46-87a9-4dbb-98dc-2a8ad57a259c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_24ab0c5d-f193-4467-aa80-9ac2cbb9abbe" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_d884bd46-87a9-4dbb-98dc-2a8ad57a259c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_23bdf40b-962d-42e6-b493-14d7874ca7ba" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IntangibleAssetsNetIncludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_24ab0c5d-f193-4467-aa80-9ac2cbb9abbe" xlink:to="loc_us-gaap_IntangibleAssetsNetIncludingGoodwill_23bdf40b-962d-42e6-b493-14d7874ca7ba" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_eeeb4644-2c9e-4f5d-a0cd-059230ff597f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_24ab0c5d-f193-4467-aa80-9ac2cbb9abbe" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_eeeb4644-2c9e-4f5d-a0cd-059230ff597f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_b516369f-b62b-414e-a496-3aba3967330f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_eeeb4644-2c9e-4f5d-a0cd-059230ff597f" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_b516369f-b62b-414e-a496-3aba3967330f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_b516369f-b62b-414e-a496-3aba3967330f_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_b516369f-b62b-414e-a496-3aba3967330f" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_b516369f-b62b-414e-a496-3aba3967330f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8e9e1fb4-7f75-4285-847b-e9a8772495bd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_b516369f-b62b-414e-a496-3aba3967330f" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8e9e1fb4-7f75-4285-847b-e9a8772495bd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_TwinRiverWorldwideHoldingsIncMember_481469e5-571c-4901-8078-18de3b74c703" xlink:href="eri-20200630.xsd#eri_TwinRiverWorldwideHoldingsIncMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8e9e1fb4-7f75-4285-847b-e9a8772495bd" xlink:to="loc_eri_TwinRiverWorldwideHoldingsIncMember_481469e5-571c-4901-8078-18de3b74c703" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_69565689-2743-48a7-9638-2e6dad582b21" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_eeeb4644-2c9e-4f5d-a0cd-059230ff597f" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_69565689-2743-48a7-9638-2e6dad582b21" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_69565689-2743-48a7-9638-2e6dad582b21_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_69565689-2743-48a7-9638-2e6dad582b21" xlink:to="loc_us-gaap_RelatedPartyDomain_69565689-2743-48a7-9638-2e6dad582b21_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_39e6ceb3-0003-4d23-93da-db105c751310" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_69565689-2743-48a7-9638-2e6dad582b21" xlink:to="loc_us-gaap_RelatedPartyDomain_39e6ceb3-0003-4d23-93da-db105c751310" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_EldoradoResortCasinoShreveportJointVentureAndColumbiaPropertiesTahoeLLCMember_2b0bd60b-c5b0-4f01-8500-924b4111b7f7" xlink:href="eri-20200630.xsd#eri_EldoradoResortCasinoShreveportJointVentureAndColumbiaPropertiesTahoeLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_39e6ceb3-0003-4d23-93da-db105c751310" xlink:to="loc_eri_EldoradoResortCasinoShreveportJointVentureAndColumbiaPropertiesTahoeLLCMember_2b0bd60b-c5b0-4f01-8500-924b4111b7f7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_NemacolinMember_d0a06238-e41c-479a-82d4-cee346fecd38" xlink:href="eri-20200630.xsd#eri_NemacolinMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_39e6ceb3-0003-4d23-93da-db105c751310" xlink:to="loc_eri_NemacolinMember_d0a06238-e41c-479a-82d4-cee346fecd38" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_36b4576e-674a-4b93-a71d-cf678645f543" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_eeeb4644-2c9e-4f5d-a0cd-059230ff597f" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_36b4576e-674a-4b93-a71d-cf678645f543" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_36b4576e-674a-4b93-a71d-cf678645f543_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_36b4576e-674a-4b93-a71d-cf678645f543" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_36b4576e-674a-4b93-a71d-cf678645f543_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_7c73590d-a96c-4a6b-b9d4-cf72a523fe07" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_36b4576e-674a-4b93-a71d-cf678645f543" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_7c73590d-a96c-4a6b-b9d4-cf72a523fe07" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MontBleuCasinoResortSpaMember_f72a9d42-dfce-4cac-b9b7-2084767045cd" xlink:href="eri-20200630.xsd#eri_MontBleuCasinoResortSpaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_7c73590d-a96c-4a6b-b9d4-cf72a523fe07" xlink:to="loc_eri_MontBleuCasinoResortSpaMember_f72a9d42-dfce-4cac-b9b7-2084767045cd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_PresqueIsleDownsIncMember_c2b083c9-1647-47c1-8efe-74eb2e489c18" xlink:href="eri-20200630.xsd#eri_PresqueIsleDownsIncMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_7c73590d-a96c-4a6b-b9d4-cf72a523fe07" xlink:to="loc_eri_PresqueIsleDownsIncMember_c2b083c9-1647-47c1-8efe-74eb2e489c18" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_e23c7bfc-1f9f-4c89-b937-1e7a6a42fe93" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_eeeb4644-2c9e-4f5d-a0cd-059230ff597f" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_e23c7bfc-1f9f-4c89-b937-1e7a6a42fe93" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_e23c7bfc-1f9f-4c89-b937-1e7a6a42fe93_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_e23c7bfc-1f9f-4c89-b937-1e7a6a42fe93" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_e23c7bfc-1f9f-4c89-b937-1e7a6a42fe93_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_75000383-6cc7-4b49-a131-21d7fc60fcac" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_e23c7bfc-1f9f-4c89-b937-1e7a6a42fe93" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_75000383-6cc7-4b49-a131-21d7fc60fcac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_2095e2c1-129c-46ff-9986-3fe8374be69a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_75000383-6cc7-4b49-a131-21d7fc60fcac" xlink:to="loc_us-gaap_SubsequentEventMember_2095e2c1-129c-46ff-9986-3fe8374be69a" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/AssetsHeldforSaleScheduleofAssetsandLiabilitiesHeldforSaleAccountedCarryingValueLowerthanFairValueDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#AssetsHeldforSaleScheduleofAssetsandLiabilitiesHeldforSaleAccountedCarryingValueLowerthanFairValueDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/AssetsHeldforSaleScheduleofAssetsandLiabilitiesHeldforSaleAccountedCarryingValueLowerthanFairValueDetails" xlink:type="extended" id="i746c69f84c264b40839996e9c6582adf_AssetsHeldforSaleScheduleofAssetsandLiabilitiesHeldforSaleAccountedCarryingValueLowerthanFairValueDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_07031d3d-dd36-467d-becd-fa5c2331ae63" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_089e54eb-7dfe-473d-95e6-844627613952" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_07031d3d-dd36-467d-becd-fa5c2331ae63" xlink:to="loc_us-gaap_AssetsAbstract_089e54eb-7dfe-473d-95e6-844627613952" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_61e07059-d1a1-4902-9bfb-9f446a0fda28" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_089e54eb-7dfe-473d-95e6-844627613952" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_61e07059-d1a1-4902-9bfb-9f446a0fda28" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_DisposalGroupIncludingDiscontinuedOperationDueFromAffiliatesCurrent_46459f01-be77-48b2-8486-0214316653e5" xlink:href="eri-20200630.xsd#eri_DisposalGroupIncludingDiscontinuedOperationDueFromAffiliatesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_089e54eb-7dfe-473d-95e6-844627613952" xlink:to="loc_eri_DisposalGroupIncludingDiscontinuedOperationDueFromAffiliatesCurrent_46459f01-be77-48b2-8486-0214316653e5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationInventoryCurrent_e60945c4-fc84-4b94-a797-627b8978998e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationInventoryCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_089e54eb-7dfe-473d-95e6-844627613952" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationInventoryCurrent_e60945c4-fc84-4b94-a797-627b8978998e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_DisposalGroupIncludingDiscontinuedOperationRightToUseAssetNoncurrent_df05e34a-5a84-4408-aa74-42b658e1725f" xlink:href="eri-20200630.xsd#eri_DisposalGroupIncludingDiscontinuedOperationRightToUseAssetNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_089e54eb-7dfe-473d-95e6-844627613952" xlink:to="loc_eri_DisposalGroupIncludingDiscontinuedOperationRightToUseAssetNoncurrent_df05e34a-5a84-4408-aa74-42b658e1725f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent_7141ac59-efaf-44a8-8e4d-7cac172204ee" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_089e54eb-7dfe-473d-95e6-844627613952" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent_7141ac59-efaf-44a8-8e4d-7cac172204ee" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent_5da4e68d-1f7b-4eb1-a701-be25f88ceccf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_089e54eb-7dfe-473d-95e6-844627613952" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent_5da4e68d-1f7b-4eb1-a701-be25f88ceccf" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwillCurrent_092a37a8-bd32-4670-9a85-91fb6f775524" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwillCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_089e54eb-7dfe-473d-95e6-844627613952" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwillCurrent_092a37a8-bd32-4670-9a85-91fb6f775524" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsCurrent_919a4b1f-c431-48cf-8a2d-4b365b7a7e69" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_089e54eb-7dfe-473d-95e6-844627613952" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsCurrent_919a4b1f-c431-48cf-8a2d-4b365b7a7e69" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_3a82aa8a-1fa3-457a-89a8-1319a2b0c97a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_089e54eb-7dfe-473d-95e6-844627613952" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_3a82aa8a-1fa3-457a-89a8-1319a2b0c97a" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAbstract_d9dad7f9-96b9-4d9b-9d59-d3e8d89fcab3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_07031d3d-dd36-467d-becd-fa5c2331ae63" xlink:to="loc_us-gaap_LiabilitiesAbstract_d9dad7f9-96b9-4d9b-9d59-d3e8d89fcab3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_e3e67d4b-dabe-4b3d-9c01-6868ef109b5d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_d9dad7f9-96b9-4d9b-9d59-d3e8d89fcab3" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_e3e67d4b-dabe-4b3d-9c01-6868ef109b5d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_DisposalGroupIncludingDiscontinuedOperationAccruedPayrollAndRelatedCurrent_4d0da83d-ad58-4066-a5fc-0e6b49a403a9" xlink:href="eri-20200630.xsd#eri_DisposalGroupIncludingDiscontinuedOperationAccruedPayrollAndRelatedCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_d9dad7f9-96b9-4d9b-9d59-d3e8d89fcab3" xlink:to="loc_eri_DisposalGroupIncludingDiscontinuedOperationAccruedPayrollAndRelatedCurrent_4d0da83d-ad58-4066-a5fc-0e6b49a403a9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_DisposalGroupIncludingDiscontinuedOperationAccruedPropertyAndOtherTaxes_889880e9-f101-474d-becb-454fde6a4bdd" xlink:href="eri-20200630.xsd#eri_DisposalGroupIncludingDiscontinuedOperationAccruedPropertyAndOtherTaxes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_d9dad7f9-96b9-4d9b-9d59-d3e8d89fcab3" xlink:to="loc_eri_DisposalGroupIncludingDiscontinuedOperationAccruedPropertyAndOtherTaxes_889880e9-f101-474d-becb-454fde6a4bdd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_DisposalGroupIncludingDiscontinuedOperationShortTermLeaseObligation_cddf188b-445f-4f8e-92c1-68f9831b86ad" xlink:href="eri-20200630.xsd#eri_DisposalGroupIncludingDiscontinuedOperationShortTermLeaseObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_d9dad7f9-96b9-4d9b-9d59-d3e8d89fcab3" xlink:to="loc_eri_DisposalGroupIncludingDiscontinuedOperationShortTermLeaseObligation_cddf188b-445f-4f8e-92c1-68f9831b86ad" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_DisposalGroupIncludingDiscontinuedOperationLongTermLeaseObligation_6d29668f-4589-42da-8f81-011f39aefb81" xlink:href="eri-20200630.xsd#eri_DisposalGroupIncludingDiscontinuedOperationLongTermLeaseObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_d9dad7f9-96b9-4d9b-9d59-d3e8d89fcab3" xlink:to="loc_eri_DisposalGroupIncludingDiscontinuedOperationLongTermLeaseObligation_6d29668f-4589-42da-8f81-011f39aefb81" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_DisposalGroupIncludingDiscontinuedOperationAccruedOtherLiabilitiesCurrent_0825962a-ecf8-480f-9aa0-69a6339d009e" xlink:href="eri-20200630.xsd#eri_DisposalGroupIncludingDiscontinuedOperationAccruedOtherLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_d9dad7f9-96b9-4d9b-9d59-d3e8d89fcab3" xlink:to="loc_eri_DisposalGroupIncludingDiscontinuedOperationAccruedOtherLiabilitiesCurrent_0825962a-ecf8-480f-9aa0-69a6339d009e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_DisposalGroupIncludingDiscontinuedOperationOtherLongTermLiabilitiesCurrent_e1bcb9b1-0b07-43ad-b96f-f50df66912ca" xlink:href="eri-20200630.xsd#eri_DisposalGroupIncludingDiscontinuedOperationOtherLongTermLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_d9dad7f9-96b9-4d9b-9d59-d3e8d89fcab3" xlink:to="loc_eri_DisposalGroupIncludingDiscontinuedOperationOtherLongTermLiabilitiesCurrent_e1bcb9b1-0b07-43ad-b96f-f50df66912ca" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_bbbf36c4-5129-4674-b7f7-3730d178560c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_d9dad7f9-96b9-4d9b-9d59-d3e8d89fcab3" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_bbbf36c4-5129-4674-b7f7-3730d178560c" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7bb58f4a-d306-4ed7-90b9-139b7c7681a1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_07031d3d-dd36-467d-becd-fa5c2331ae63" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7bb58f4a-d306-4ed7-90b9-139b7c7681a1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_cde22c3d-10ac-46e3-ad8e-4e64f55a389d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7bb58f4a-d306-4ed7-90b9-139b7c7681a1" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_cde22c3d-10ac-46e3-ad8e-4e64f55a389d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_cde22c3d-10ac-46e3-ad8e-4e64f55a389d_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_cde22c3d-10ac-46e3-ad8e-4e64f55a389d" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_cde22c3d-10ac-46e3-ad8e-4e64f55a389d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_2f7b7d45-492b-4326-bd61-abbfb56ae07a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_cde22c3d-10ac-46e3-ad8e-4e64f55a389d" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_2f7b7d45-492b-4326-bd61-abbfb56ae07a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_EldoradoResortCasinoShreveportMember_16107352-fb87-4fe2-aa20-63e18d08586b" xlink:href="eri-20200630.xsd#eri_EldoradoResortCasinoShreveportMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_2f7b7d45-492b-4326-bd61-abbfb56ae07a" xlink:to="loc_eri_EldoradoResortCasinoShreveportMember_16107352-fb87-4fe2-aa20-63e18d08586b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MontBleuCasinoResortSpaMember_6c1d7144-f69d-45d5-851a-c6646b6a2e10" xlink:href="eri-20200630.xsd#eri_MontBleuCasinoResortSpaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_2f7b7d45-492b-4326-bd61-abbfb56ae07a" xlink:to="loc_eri_MontBleuCasinoResortSpaMember_6c1d7144-f69d-45d5-851a-c6646b6a2e10" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_KansasCityMember_d1e6ef2a-f77d-4e73-9128-2563c7604665" xlink:href="eri-20200630.xsd#eri_KansasCityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_2f7b7d45-492b-4326-bd61-abbfb56ae07a" xlink:to="loc_eri_KansasCityMember_d1e6ef2a-f77d-4e73-9128-2563c7604665" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_VicksburgMember_b2fa9753-f6c7-4768-9d9c-e60bdfc50102" xlink:href="eri-20200630.xsd#eri_VicksburgMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_2f7b7d45-492b-4326-bd61-abbfb56ae07a" xlink:to="loc_eri_VicksburgMember_b2fa9753-f6c7-4768-9d9c-e60bdfc50102" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_cf6a6785-76ee-4a47-bd0a-f7a8253ee915" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupClassificationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7bb58f4a-d306-4ed7-90b9-139b7c7681a1" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_cf6a6785-76ee-4a47-bd0a-f7a8253ee915" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_cf6a6785-76ee-4a47-bd0a-f7a8253ee915_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_cf6a6785-76ee-4a47-bd0a-f7a8253ee915" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_cf6a6785-76ee-4a47-bd0a-f7a8253ee915_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_b5f461a5-e828-4550-8f90-58148f55f49a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_cf6a6785-76ee-4a47-bd0a-f7a8253ee915" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_b5f461a5-e828-4550-8f90-58148f55f49a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember_4e8e28cd-1f42-4218-bc00-9a31deee4066" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_b5f461a5-e828-4550-8f90-58148f55f49a" xlink:to="loc_us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember_4e8e28cd-1f42-4218-bc00-9a31deee4066" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/AssetsHeldforSaleScheduleofInformationofNetRevenuesandNetIncomeLossDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#AssetsHeldforSaleScheduleofInformationofNetRevenuesandNetIncomeLossDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/AssetsHeldforSaleScheduleofInformationofNetRevenuesandNetIncomeLossDetails" xlink:type="extended" id="if9d3e27c48d74b6e9591d49832406f07_AssetsHeldforSaleScheduleofInformationofNetRevenuesandNetIncomeLossDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_a797e635-c6ac-4c12-8ac8-c3d1e58e3c5c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_187d1c93-4df5-4cc2-97b1-0bf985b8b515" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_a797e635-c6ac-4c12-8ac8-c3d1e58e3c5c" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_187d1c93-4df5-4cc2-97b1-0bf985b8b515" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_DisposalGroupIncludingDiscontinuedOperationNetIncomeLoss_2830f203-ebeb-4564-959f-f45121d941a3" xlink:href="eri-20200630.xsd#eri_DisposalGroupIncludingDiscontinuedOperationNetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_a797e635-c6ac-4c12-8ac8-c3d1e58e3c5c" xlink:to="loc_eri_DisposalGroupIncludingDiscontinuedOperationNetIncomeLoss_2830f203-ebeb-4564-959f-f45121d941a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_b54ed293-b29b-4f83-95e9-a1f785ff5605" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_a797e635-c6ac-4c12-8ac8-c3d1e58e3c5c" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_b54ed293-b29b-4f83-95e9-a1f785ff5605" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_6b947e0a-b2be-4b0d-acde-b912a1879170" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_b54ed293-b29b-4f83-95e9-a1f785ff5605" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_6b947e0a-b2be-4b0d-acde-b912a1879170" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_6b947e0a-b2be-4b0d-acde-b912a1879170_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_6b947e0a-b2be-4b0d-acde-b912a1879170" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_6b947e0a-b2be-4b0d-acde-b912a1879170_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_87347aa8-33ce-4304-aaca-02e4f537e323" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_6b947e0a-b2be-4b0d-acde-b912a1879170" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_87347aa8-33ce-4304-aaca-02e4f537e323" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_EldoradoResortCasinoShreveportMember_e426f8a8-4dc7-4424-8157-9c8edc6278a3" xlink:href="eri-20200630.xsd#eri_EldoradoResortCasinoShreveportMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_87347aa8-33ce-4304-aaca-02e4f537e323" xlink:to="loc_eri_EldoradoResortCasinoShreveportMember_e426f8a8-4dc7-4424-8157-9c8edc6278a3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MontBleuCasinoResortSpaMember_9cabdb12-b93c-4ea1-be5b-184a1d6dd7d1" xlink:href="eri-20200630.xsd#eri_MontBleuCasinoResortSpaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_87347aa8-33ce-4304-aaca-02e4f537e323" xlink:to="loc_eri_MontBleuCasinoResortSpaMember_9cabdb12-b93c-4ea1-be5b-184a1d6dd7d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_KansasCityMember_a7eddd61-743f-400d-9ab3-69a35a23158c" xlink:href="eri-20200630.xsd#eri_KansasCityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_87347aa8-33ce-4304-aaca-02e4f537e323" xlink:to="loc_eri_KansasCityMember_a7eddd61-743f-400d-9ab3-69a35a23158c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_VicksburgMember_4894c1e3-7fce-45b2-9972-42714988d147" xlink:href="eri-20200630.xsd#eri_VicksburgMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_87347aa8-33ce-4304-aaca-02e4f537e323" xlink:to="loc_eri_VicksburgMember_4894c1e3-7fce-45b2-9972-42714988d147" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MountaineerMember_d615b075-5661-434c-b895-5c0106e5bc9d" xlink:href="eri-20200630.xsd#eri_MountaineerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_87347aa8-33ce-4304-aaca-02e4f537e323" xlink:to="loc_eri_MountaineerMember_d615b075-5661-434c-b895-5c0106e5bc9d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CapeGirardeauMember_0194758d-2acd-4e00-aec2-1dfa389f411f" xlink:href="eri-20200630.xsd#eri_CapeGirardeauMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_87347aa8-33ce-4304-aaca-02e4f537e323" xlink:to="loc_eri_CapeGirardeauMember_0194758d-2acd-4e00-aec2-1dfa389f411f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CaruthersvilleMember_3359cf8d-6ce4-4bb0-84d2-b45a5c776faa" xlink:href="eri-20200630.xsd#eri_CaruthersvilleMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_87347aa8-33ce-4304-aaca-02e4f537e323" xlink:to="loc_eri_CaruthersvilleMember_3359cf8d-6ce4-4bb0-84d2-b45a5c776faa" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_PresqueIsleDownsIncMember_21b2efaa-cc7c-4f87-85ec-d3853659055c" xlink:href="eri-20200630.xsd#eri_PresqueIsleDownsIncMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_87347aa8-33ce-4304-aaca-02e4f537e323" xlink:to="loc_eri_PresqueIsleDownsIncMember_21b2efaa-cc7c-4f87-85ec-d3853659055c" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_NemacolinMember_389c450b-2708-4edc-863c-3789dd59e9a4" xlink:href="eri-20200630.xsd#eri_NemacolinMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_87347aa8-33ce-4304-aaca-02e4f537e323" xlink:to="loc_eri_NemacolinMember_389c450b-2708-4edc-863c-3789dd59e9a4" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_351b0fe4-2f2d-4ac5-bacd-bdc84ed18fe1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupClassificationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_b54ed293-b29b-4f83-95e9-a1f785ff5605" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_351b0fe4-2f2d-4ac5-bacd-bdc84ed18fe1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_351b0fe4-2f2d-4ac5-bacd-bdc84ed18fe1_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_351b0fe4-2f2d-4ac5-bacd-bdc84ed18fe1" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_351b0fe4-2f2d-4ac5-bacd-bdc84ed18fe1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_bb7ca5da-c803-451e-b310-df5f881fa153" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_351b0fe4-2f2d-4ac5-bacd-bdc84ed18fe1" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_bb7ca5da-c803-451e-b310-df5f881fa153" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember_01087589-cca4-4263-8d84-aaddeb788b25" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_bb7ca5da-c803-451e-b310-df5f881fa153" xlink:to="loc_us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember_01087589-cca4-4263-8d84-aaddeb788b25" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/StockBasedCompensationandStockholdersEquity" xlink:type="simple" xlink:href="eri-20200630.xsd#StockBasedCompensationandStockholdersEquity"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/StockBasedCompensationandStockholdersEquity" xlink:type="extended" id="i328dff21da254965b4f2c78c80a6a595_StockBasedCompensationandStockholdersEquity"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/StockBasedCompensationandStockholdersEquityTables" xlink:type="simple" xlink:href="eri-20200630.xsd#StockBasedCompensationandStockholdersEquityTables"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/StockBasedCompensationandStockholdersEquityTables" xlink:type="extended" id="i9bec2a42c3e24133a68fb658aca0f8c2_StockBasedCompensationandStockholdersEquityTables"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/StockBasedCompensationandStockholdersEquityAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#StockBasedCompensationandStockholdersEquityAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/StockBasedCompensationandStockholdersEquityAdditionalInformationDetails" xlink:type="extended" id="i27adc300937e4c6f9dc60489c5a2e7b8_StockBasedCompensationandStockholdersEquityAdditionalInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_48ef9c69-44fe-463a-9cae-77111b7e78ad" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_48ef9c69-44fe-463a-9cae-77111b7e78ad" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_3e9cd057-8c92-437e-8bf5-e97e8312813b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_3e9cd057-8c92-437e-8bf5-e97e8312813b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_2b38aa4c-4ccf-4974-b72f-b30bd5f57ff8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_2b38aa4c-4ccf-4974-b72f-b30bd5f57ff8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfStockIssuanceCosts_4a39b213-9a09-4c4a-86eb-45ba073d334c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsOfStockIssuanceCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_PaymentsOfStockIssuanceCosts_4a39b213-9a09-4c4a-86eb-45ba073d334c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_264231b8-3f38-4ccd-99d7-f03e8aaac4cd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_264231b8-3f38-4ccd-99d7-f03e8aaac4cd" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockShares_fc465d2b-ac5e-4891-b65f-72ba53c079f5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_TreasuryStockShares_fc465d2b-ac5e-4891-b65f-72ba53c079f5" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_c2765ed6-3ca0-48e5-b0d2-80ff1affaa09" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_c2765ed6-3ca0-48e5-b0d2-80ff1affaa09" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_37abb33a-1942-4b6f-8ae3-db2d37c4ad57" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_37abb33a-1942-4b6f-8ae3-db2d37c4ad57" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_3b008714-cfda-4afd-a373-afdd2547761f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockAcquiredAverageCostPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_3b008714-cfda-4afd-a373-afdd2547761f" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_813cb362-5594-4d60-b03b-24a0478acf33" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_813cb362-5594-4d60-b03b-24a0478acf33" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_IncreaseDecreaseInExcessTaxBenefitFromShareBasedCompensation_6cb37874-3870-4fd5-bec8-073f894b554e" xlink:href="eri-20200630.xsd#eri_IncreaseDecreaseInExcessTaxBenefitFromShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_eri_IncreaseDecreaseInExcessTaxBenefitFromShareBasedCompensation_6cb37874-3870-4fd5-bec8-073f894b554e" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_910ad427-8a5d-4ab3-b133-3899091e4c23" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_910ad427-8a5d-4ab3-b133-3899091e4c23" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_7ee1264b-85dd-4139-81de-a9660b544bae" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_7ee1264b-85dd-4139-81de-a9660b544bae" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_7ee0eb40-be04-47d7-bc5c-b394d6afcbb3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_7ee0eb40-be04-47d7-bc5c-b394d6afcbb3" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_d754514c-b432-40f8-9fdf-4bbbc37942b7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_d754514c-b432-40f8-9fdf-4bbbc37942b7" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_e02bdb92-ea1c-4be2-87b7-588a5cb58945" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_e02bdb92-ea1c-4be2-87b7-588a5cb58945" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_86f42230-40c0-4d65-aa8c-ea2363edf301" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_86f42230-40c0-4d65-aa8c-ea2363edf301" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_a1f99a61-a10a-45c0-9691-d1d6509247a0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_a1f99a61-a10a-45c0-9691-d1d6509247a0" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_877ee709-8b45-4f69-b699-aaa9592978e9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_dd40a429-265b-4111-a52c-9a6da18bf026" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_877ee709-8b45-4f69-b699-aaa9592978e9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_387601b8-978f-4b04-b85a-92e808cd97f9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_877ee709-8b45-4f69-b699-aaa9592978e9" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_387601b8-978f-4b04-b85a-92e808cd97f9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_387601b8-978f-4b04-b85a-92e808cd97f9_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_387601b8-978f-4b04-b85a-92e808cd97f9" xlink:to="loc_us-gaap_EquityComponentDomain_387601b8-978f-4b04-b85a-92e808cd97f9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_16f01211-4d3b-43dd-a4c9-354df211fac6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_387601b8-978f-4b04-b85a-92e808cd97f9" xlink:to="loc_us-gaap_EquityComponentDomain_16f01211-4d3b-43dd-a4c9-354df211fac6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_3d914327-e9b8-4a7f-8c1f-e764d5c82191" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_16f01211-4d3b-43dd-a4c9-354df211fac6" xlink:to="loc_us-gaap_CommonStockMember_3d914327-e9b8-4a7f-8c1f-e764d5c82191" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_5138d7a9-eb46-45b3-8459-556e23f40ecd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_877ee709-8b45-4f69-b699-aaa9592978e9" xlink:to="loc_us-gaap_AwardTypeAxis_5138d7a9-eb46-45b3-8459-556e23f40ecd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5138d7a9-eb46-45b3-8459-556e23f40ecd_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_5138d7a9-eb46-45b3-8459-556e23f40ecd" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5138d7a9-eb46-45b3-8459-556e23f40ecd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ef391ad7-5958-41f4-91f8-2be015996f63" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_5138d7a9-eb46-45b3-8459-556e23f40ecd" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ef391ad7-5958-41f4-91f8-2be015996f63" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_92504b93-b1d2-4f6e-973f-f27f2c4225e4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ef391ad7-5958-41f4-91f8-2be015996f63" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_92504b93-b1d2-4f6e-973f-f27f2c4225e4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_04ce7538-fc60-4db5-89cb-2303579057e0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_877ee709-8b45-4f69-b699-aaa9592978e9" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_04ce7538-fc60-4db5-89cb-2303579057e0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_04ce7538-fc60-4db5-89cb-2303579057e0_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_04ce7538-fc60-4db5-89cb-2303579057e0" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_04ce7538-fc60-4db5-89cb-2303579057e0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_f91e5bbb-550a-4cdd-8035-e14f151edbdf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_04ce7538-fc60-4db5-89cb-2303579057e0" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_f91e5bbb-550a-4cdd-8035-e14f151edbdf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_PublicStockOfferingMember_005b1f72-ad03-4967-8227-f282f9c96f3a" xlink:href="eri-20200630.xsd#eri_PublicStockOfferingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_f91e5bbb-550a-4cdd-8035-e14f151edbdf" xlink:to="loc_eri_PublicStockOfferingMember_005b1f72-ad03-4967-8227-f282f9c96f3a" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/StockBasedCompensationandStockholdersEquityScheduleofSharebasedCompensationRestrictedStockUnitsActivityDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#StockBasedCompensationandStockholdersEquityScheduleofSharebasedCompensationRestrictedStockUnitsActivityDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/StockBasedCompensationandStockholdersEquityScheduleofSharebasedCompensationRestrictedStockUnitsActivityDetails" xlink:type="extended" id="i54a4d722d5c4466190185b8b61544f87_StockBasedCompensationandStockholdersEquityScheduleofSharebasedCompensationRestrictedStockUnitsActivityDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_69198002-7b6d-464d-851e-db4a4ddeb027" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_43f8666d-4c80-4075-ac3d-c49e0e1011ac" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_69198002-7b6d-464d-851e-db4a4ddeb027" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_43f8666d-4c80-4075-ac3d-c49e0e1011ac" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_6aa12694-38fc-4735-82d2-d45905ee0d17" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_43f8666d-4c80-4075-ac3d-c49e0e1011ac" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_6aa12694-38fc-4735-82d2-d45905ee0d17" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_575c4b43-b0a9-44b4-b787-12bd8be280af" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_43f8666d-4c80-4075-ac3d-c49e0e1011ac" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_575c4b43-b0a9-44b4-b787-12bd8be280af" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_ea381826-4dca-4bf1-b681-b9a9ccc7852a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_43f8666d-4c80-4075-ac3d-c49e0e1011ac" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_ea381826-4dca-4bf1-b681-b9a9ccc7852a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_210dd4ea-40ac-467c-bcc9-30819598fb12" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_43f8666d-4c80-4075-ac3d-c49e0e1011ac" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_210dd4ea-40ac-467c-bcc9-30819598fb12" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_d6110770-b3ef-4977-b68c-b03a2ad4845a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_da2c55ca-4dae-4880-a45e-b8ac5c1a1388" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_69198002-7b6d-464d-851e-db4a4ddeb027" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_da2c55ca-4dae-4880-a45e-b8ac5c1a1388" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_390993dc-eeac-49a9-ac0c-9aa4db237d10" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_da2c55ca-4dae-4880-a45e-b8ac5c1a1388" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_390993dc-eeac-49a9-ac0c-9aa4db237d10" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_397ef7c9-2ffd-4919-b7f0-fb97029482d1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_da2c55ca-4dae-4880-a45e-b8ac5c1a1388" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_397ef7c9-2ffd-4919-b7f0-fb97029482d1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_0b62a65f-b6df-42f3-a964-716b52913888" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_da2c55ca-4dae-4880-a45e-b8ac5c1a1388" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_0b62a65f-b6df-42f3-a964-716b52913888" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_169d299c-4f28-4a32-abbb-c7d0a7782cf8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_da2c55ca-4dae-4880-a45e-b8ac5c1a1388" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_169d299c-4f28-4a32-abbb-c7d0a7782cf8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_334465f2-08bf-4ab0-b8bf-d448fad12d21" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1dff0504-b888-49e7-9f27-d479345fdaad" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_69198002-7b6d-464d-851e-db4a4ddeb027" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1dff0504-b888-49e7-9f27-d479345fdaad" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_5d1cdd6b-581d-4a4b-9e69-9e224299d561" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1dff0504-b888-49e7-9f27-d479345fdaad" xlink:to="loc_us-gaap_AwardTypeAxis_5d1cdd6b-581d-4a4b-9e69-9e224299d561" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5d1cdd6b-581d-4a4b-9e69-9e224299d561_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_5d1cdd6b-581d-4a4b-9e69-9e224299d561" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5d1cdd6b-581d-4a4b-9e69-9e224299d561_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_aa3c4333-0161-44da-8a8d-9fac81307797" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_5d1cdd6b-581d-4a4b-9e69-9e224299d561" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_aa3c4333-0161-44da-8a8d-9fac81307797" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_58ea2f49-e2ef-4bca-86aa-08ec7d006808" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_aa3c4333-0161-44da-8a8d-9fac81307797" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_58ea2f49-e2ef-4bca-86aa-08ec7d006808" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_638165d6-99c6-4bd4-b5cb-ba08de9e2699" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1dff0504-b888-49e7-9f27-d479345fdaad" xlink:to="loc_srt_TitleOfIndividualAxis_638165d6-99c6-4bd4-b5cb-ba08de9e2699" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_638165d6-99c6-4bd4-b5cb-ba08de9e2699_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_638165d6-99c6-4bd4-b5cb-ba08de9e2699" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_638165d6-99c6-4bd4-b5cb-ba08de9e2699_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_f86d89e5-8e28-4800-aaa2-476475dee154" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_638165d6-99c6-4bd4-b5cb-ba08de9e2699" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_f86d89e5-8e28-4800-aaa2-476475dee154" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_NonEmployeeMembersOfBODMember_dce9c9df-015e-4ff5-aa15-642bbcacaace" xlink:href="eri-20200630.xsd#eri_NonEmployeeMembersOfBODMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_f86d89e5-8e28-4800-aaa2-476475dee154" xlink:to="loc_eri_NonEmployeeMembersOfBODMember_dce9c9df-015e-4ff5-aa15-642bbcacaace" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/InvestmentsinandAdvancestoUnconsolidatedAffiliates" xlink:type="simple" xlink:href="eri-20200630.xsd#InvestmentsinandAdvancestoUnconsolidatedAffiliates"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/InvestmentsinandAdvancestoUnconsolidatedAffiliates" xlink:type="extended" id="ib25663b42f4c455aae15d2543d22d268_InvestmentsinandAdvancestoUnconsolidatedAffiliates"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/InvestmentsinandAdvancestoUnconsolidatedAffiliatesAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#InvestmentsinandAdvancestoUnconsolidatedAffiliatesAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/InvestmentsinandAdvancestoUnconsolidatedAffiliatesAdditionalInformationDetails" xlink:type="extended" id="ib5285fb59b9f4b6b89883804fffafef2_InvestmentsinandAdvancestoUnconsolidatedAffiliatesAdditionalInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireInterestInJointVenture_37f01ad0-a84e-403d-b98e-02490e7e0968" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireInterestInJointVenture"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_us-gaap_PaymentsToAcquireInterestInJointVenture_37f01ad0-a84e-403d-b98e-02490e7e0968" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_AcresOfLandContributedToVariableInterest_1834b4d1-5dbc-468a-98a8-25e5cd5552ec" xlink:href="eri-20200630.xsd#eri_AcresOfLandContributedToVariableInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_eri_AcresOfLandContributedToVariableInterest_1834b4d1-5dbc-468a-98a8-25e5cd5552ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_FairValueOfLandAcquired_ec460d46-dfd5-40e8-89d1-78f7a4f287a8" xlink:href="eri-20200630.xsd#eri_FairValueOfLandAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_eri_FairValueOfLandAcquired_ec460d46-dfd5-40e8-89d1-78f7a4f287a8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityOwnershipPercentage_62ead92e-825e-4e84-b5f5-f05a9e93966c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_VariableInterestEntityOwnershipPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_us-gaap_VariableInterestEntityOwnershipPercentage_62ead92e-825e-4e84-b5f5-f05a9e93966c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_AgreementPeriod_77c61d62-bf59-40c2-9283-8fa674c0cf4b" xlink:href="eri-20200630.xsd#eri_AgreementPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_eri_AgreementPeriod_77c61d62-bf59-40c2-9283-8fa674c0cf4b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_a15ad21a-9d65-4719-9ab5-e35e508ceb0c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_a15ad21a-9d65-4719-9ab5-e35e508ceb0c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_EquityMethodInvestmentsValueInCommonShares_f795bd49-a5ad-4c13-aa11-76a44293bf16" xlink:href="eri-20200630.xsd#eri_EquityMethodInvestmentsValueInCommonShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_eri_EquityMethodInvestmentsValueInCommonShares_f795bd49-a5ad-4c13-aa11-76a44293bf16" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DueFromAffiliateCurrent_53b6bb36-98f4-4b9d-8308-0e0816fdec99" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DueFromAffiliateCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_us-gaap_DueFromAffiliateCurrent_53b6bb36-98f4-4b9d-8308-0e0816fdec99" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_58616e4f-83ec-43d9-87ca-34c54e73f07e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_us-gaap_EquityMethodInvestments_58616e4f-83ec-43d9-87ca-34c54e73f07e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_ccbecee7-4561-418e-9953-4e676ec57599" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_ccbecee7-4561-418e-9953-4e676ec57599" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiRestricted_91038b97-0b89-4f4a-93c4-b26dfd11c2b5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquitySecuritiesFvNiRestricted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_us-gaap_EquitySecuritiesFvNiRestricted_91038b97-0b89-4f4a-93c4-b26dfd11c2b5" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiUnrealizedLoss_c5808418-2411-4c59-8ec4-546f71d8bd36" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquitySecuritiesFvNiUnrealizedLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_us-gaap_EquitySecuritiesFvNiUnrealizedLoss_c5808418-2411-4c59-8ec4-546f71d8bd36" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGain_3b846da0-2b48-444a-ac50-e308ebb371e2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquitySecuritiesFvNiUnrealizedGain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGain_3b846da0-2b48-444a-ac50-e308ebb371e2" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrealizedGainLossOnInvestments_6052a300-92e8-4c57-b669-c2dd8f09ef16" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UnrealizedGainLossOnInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_us-gaap_UnrealizedGainLossOnInvestments_6052a300-92e8-4c57-b669-c2dd8f09ef16" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_RevenueRecognizedStraightLineBasisOverPeriod_7993b511-6ef1-4afd-b433-092d2f0c1741" xlink:href="eri-20200630.xsd#eri_RevenueRecognizedStraightLineBasisOverPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_eri_RevenueRecognizedStraightLineBasisOverPeriod_7993b511-6ef1-4afd-b433-092d2f0c1741" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_5d4227c4-3ba5-4bec-a680-96ea48101293" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_5d4227c4-3ba5-4bec-a680-96ea48101293" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredRevenueNoncurrent_44a55e4c-f5dc-4754-bca5-b8e976b95cd7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredRevenueNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_us-gaap_DeferredRevenueNoncurrent_44a55e4c-f5dc-4754-bca5-b8e976b95cd7" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_ad21157f-7c06-4bba-b624-b3acabbe215a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_a1c3f336-6ce7-4330-a34d-68f6e7dacc80" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_ad21157f-7c06-4bba-b624-b3acabbe215a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_e03fa761-4338-40f8-a04e-a64d181cc93e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_ad21157f-7c06-4bba-b624-b3acabbe215a" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_e03fa761-4338-40f8-a04e-a64d181cc93e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_e03fa761-4338-40f8-a04e-a64d181cc93e_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_e03fa761-4338-40f8-a04e-a64d181cc93e" xlink:to="loc_us-gaap_RelatedPartyDomain_e03fa761-4338-40f8-a04e-a64d181cc93e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_9b735603-ab8e-4694-afd0-0b9229416576" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_e03fa761-4338-40f8-a04e-a64d181cc93e" xlink:to="loc_us-gaap_RelatedPartyDomain_9b735603-ab8e-4694-afd0-0b9229416576" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_WilliamHillMember_90ddb16a-2461-419d-b062-4e2ae64717c0" xlink:href="eri-20200630.xsd#eri_WilliamHillMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_9b735603-ab8e-4694-afd0-0b9229416576" xlink:to="loc_eri_WilliamHillMember_90ddb16a-2461-419d-b062-4e2ae64717c0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_WilliamHillUSMember_eac73c45-d7be-417b-843f-69342dd25f4b" xlink:href="eri-20200630.xsd#eri_WilliamHillUSMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_9b735603-ab8e-4694-afd0-0b9229416576" xlink:to="loc_eri_WilliamHillUSMember_eac73c45-d7be-417b-843f-69342dd25f4b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_WilliamHillPLCMember_6cdf3646-8a9b-4acb-8877-87a7ed2d06ba" xlink:href="eri-20200630.xsd#eri_WilliamHillPLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_9b735603-ab8e-4694-afd0-0b9229416576" xlink:to="loc_eri_WilliamHillPLCMember_6cdf3646-8a9b-4acb-8877-87a7ed2d06ba" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_c4da5bc9-58d5-41fa-b53c-135aba73a29e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_ad21157f-7c06-4bba-b624-b3acabbe215a" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_c4da5bc9-58d5-41fa-b53c-135aba73a29e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_c4da5bc9-58d5-41fa-b53c-135aba73a29e_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_c4da5bc9-58d5-41fa-b53c-135aba73a29e" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_c4da5bc9-58d5-41fa-b53c-135aba73a29e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_55895a1b-c594-48e7-b82b-8d3eb61a379a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_c4da5bc9-58d5-41fa-b53c-135aba73a29e" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_55895a1b-c594-48e7-b82b-8d3eb61a379a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_PompanoJointVentureMember_c04f49fb-69f5-41ff-b13b-79b1bd6f52f9" xlink:href="eri-20200630.xsd#eri_PompanoJointVentureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_55895a1b-c594-48e7-b82b-8d3eb61a379a" xlink:to="loc_eri_PompanoJointVentureMember_c04f49fb-69f5-41ff-b13b-79b1bd6f52f9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_acb19ac2-181c-4f6d-a71b-2f04c3f45c73" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_ad21157f-7c06-4bba-b624-b3acabbe215a" xlink:to="loc_srt_RangeAxis_acb19ac2-181c-4f6d-a71b-2f04c3f45c73" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_acb19ac2-181c-4f6d-a71b-2f04c3f45c73_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_acb19ac2-181c-4f6d-a71b-2f04c3f45c73" xlink:to="loc_srt_RangeMember_acb19ac2-181c-4f6d-a71b-2f04c3f45c73_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_53c03ebf-b65e-4b0a-9788-c77b2a99d39f" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_acb19ac2-181c-4f6d-a71b-2f04c3f45c73" xlink:to="loc_srt_RangeMember_53c03ebf-b65e-4b0a-9788-c77b2a99d39f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_7c9902c0-0fb0-4658-b24d-191a1fca98e6" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_53c03ebf-b65e-4b0a-9788-c77b2a99d39f" xlink:to="loc_srt_MaximumMember_7c9902c0-0fb0-4658-b24d-191a1fca98e6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_bda13b91-3d00-44c9-aa36-513c369493cb" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_53c03ebf-b65e-4b0a-9788-c77b2a99d39f" xlink:to="loc_srt_MinimumMember_bda13b91-3d00-44c9-aa36-513c369493cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_6fe70ca5-f65a-4aea-b171-19408ef69891" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_ad21157f-7c06-4bba-b624-b3acabbe215a" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_6fe70ca5-f65a-4aea-b171-19408ef69891" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_6fe70ca5-f65a-4aea-b171-19408ef69891_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_6fe70ca5-f65a-4aea-b171-19408ef69891" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_6fe70ca5-f65a-4aea-b171-19408ef69891_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_efe0e64f-e0b7-4093-839f-b392dfb81630" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_6fe70ca5-f65a-4aea-b171-19408ef69891" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_efe0e64f-e0b7-4093-839f-b392dfb81630" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentLiabilitiesMember_09535edc-9c73-4f7c-9642-884b6e04fb78" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNoncurrentLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_efe0e64f-e0b7-4093-839f-b392dfb81630" xlink:to="loc_us-gaap_OtherNoncurrentLiabilitiesMember_09535edc-9c73-4f7c-9642-884b6e04fb78" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/IntangibleAssetsNet" xlink:type="simple" xlink:href="eri-20200630.xsd#IntangibleAssetsNet"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/IntangibleAssetsNet" xlink:type="extended" id="i1b89a74803a54168b16e2093b8b03567_IntangibleAssetsNet"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/IntangibleAssetsNetTables" xlink:type="simple" xlink:href="eri-20200630.xsd#IntangibleAssetsNetTables"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/IntangibleAssetsNetTables" xlink:type="extended" id="i051dfb83c5564badbcb43f2b4d40f824_IntangibleAssetsNetTables"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/IntangibleAssetsNetAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#IntangibleAssetsNetAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/IntangibleAssetsNetAdditionalInformationDetails" xlink:type="extended" id="if48664c657e64910b55b948c7b6f2f00_IntangibleAssetsNetAdditionalInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_a49c28c0-5613-4a81-80f6-0c80ff9cd429" xlink:href="eri-20200630.xsd#eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_6392c64d-9618-4867-8367-6bf0515cc54e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_a49c28c0-5613-4a81-80f6-0c80ff9cd429" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_6392c64d-9618-4867-8367-6bf0515cc54e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill_457fd720-63a4-48a8-8833-ffdcd5f45010" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_a49c28c0-5613-4a81-80f6-0c80ff9cd429" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill_457fd720-63a4-48a8-8833-ffdcd5f45010" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_1318809d-1fae-4a7f-8002-c0148a8c1d35" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_a49c28c0-5613-4a81-80f6-0c80ff9cd429" xlink:to="loc_us-gaap_AssetImpairmentCharges_1318809d-1fae-4a7f-8002-c0148a8c1d35" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_dac7710f-4e7b-49cd-a4b0-30e2501b924d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_a49c28c0-5613-4a81-80f6-0c80ff9cd429" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_dac7710f-4e7b-49cd-a4b0-30e2501b924d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_bfbb4fc6-e66a-488d-83bb-36418257a47b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_a49c28c0-5613-4a81-80f6-0c80ff9cd429" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_bfbb4fc6-e66a-488d-83bb-36418257a47b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_3c35c00c-3279-450e-8285-3b4009e560cd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_a49c28c0-5613-4a81-80f6-0c80ff9cd429" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_3c35c00c-3279-450e-8285-3b4009e560cd" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_8d6e6f3a-d5ba-4471-8118-257dace76cab" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_a49c28c0-5613-4a81-80f6-0c80ff9cd429" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_8d6e6f3a-d5ba-4471-8118-257dace76cab" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_edd9785c-7a84-4fce-9615-1aa00c6d57e1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_a49c28c0-5613-4a81-80f6-0c80ff9cd429" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_edd9785c-7a84-4fce-9615-1aa00c6d57e1" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_f371a5ce-3cc0-4b84-9a59-c0d50f61678f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_a49c28c0-5613-4a81-80f6-0c80ff9cd429" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_f371a5ce-3cc0-4b84-9a59-c0d50f61678f" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseImpairmentLoss_1f56e801-3c92-4df5-aab1-dc6d1eba03bd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_a49c28c0-5613-4a81-80f6-0c80ff9cd429" xlink:to="loc_us-gaap_OperatingLeaseImpairmentLoss_1f56e801-3c92-4df5-aab1-dc6d1eba03bd" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_0675aa3a-dbd8-46e4-a1e4-f94e7af64b04" xlink:href="eri-20200630.xsd#eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_a49c28c0-5613-4a81-80f6-0c80ff9cd429" xlink:to="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_0675aa3a-dbd8-46e4-a1e4-f94e7af64b04" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_eefd90bb-2fe8-41a8-84a8-aa31a3ee7564" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_0675aa3a-dbd8-46e4-a1e4-f94e7af64b04" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_eefd90bb-2fe8-41a8-84a8-aa31a3ee7564" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_eefd90bb-2fe8-41a8-84a8-aa31a3ee7564_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_eefd90bb-2fe8-41a8-84a8-aa31a3ee7564" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_eefd90bb-2fe8-41a8-84a8-aa31a3ee7564_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_9a6de989-9a39-4de7-af9c-0ccaadaa1f37" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_eefd90bb-2fe8-41a8-84a8-aa31a3ee7564" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_9a6de989-9a39-4de7-af9c-0ccaadaa1f37" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeNamesMember_6d81c60d-d51b-4803-ae5d-cc2d5d843e72" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_9a6de989-9a39-4de7-af9c-0ccaadaa1f37" xlink:to="loc_us-gaap_TradeNamesMember_6d81c60d-d51b-4803-ae5d-cc2d5d843e72" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentMember_83556024-91b9-4601-a311-be76991ebb55" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_9a6de989-9a39-4de7-af9c-0ccaadaa1f37" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentMember_83556024-91b9-4601-a311-be76991ebb55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_RightOfUseAssetsMember_c7ab55ee-312e-4279-9966-472119fd3525" xlink:href="eri-20200630.xsd#eri_RightOfUseAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_9a6de989-9a39-4de7-af9c-0ccaadaa1f37" xlink:to="loc_eri_RightOfUseAssetsMember_c7ab55ee-312e-4279-9966-472119fd3525" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_3fdcea19-36de-4195-9b2b-ff69e2a90933" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_0675aa3a-dbd8-46e4-a1e4-f94e7af64b04" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_3fdcea19-36de-4195-9b2b-ff69e2a90933" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_3fdcea19-36de-4195-9b2b-ff69e2a90933_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_3fdcea19-36de-4195-9b2b-ff69e2a90933" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_3fdcea19-36de-4195-9b2b-ff69e2a90933_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_ef82465d-e572-4dc5-9e21-09ce4823fe77" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_3fdcea19-36de-4195-9b2b-ff69e2a90933" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_ef82465d-e572-4dc5-9e21-09ce4823fe77" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MontBleuCasinoResortSpaMember_4bcd4d5b-bba9-467c-81a8-75d547034711" xlink:href="eri-20200630.xsd#eri_MontBleuCasinoResortSpaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_ef82465d-e572-4dc5-9e21-09ce4823fe77" xlink:to="loc_eri_MontBleuCasinoResortSpaMember_4bcd4d5b-bba9-467c-81a8-75d547034711" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis_9dde7a01-6c3f-4b1b-b6d5-bcad3aca8656" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_0675aa3a-dbd8-46e4-a1e4-f94e7af64b04" xlink:to="loc_us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis_9dde7a01-6c3f-4b1b-b6d5-bcad3aca8656" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongLivedAssetsHeldForSaleNameDomain_9dde7a01-6c3f-4b1b-b6d5-bcad3aca8656_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongLivedAssetsHeldForSaleNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis_9dde7a01-6c3f-4b1b-b6d5-bcad3aca8656" xlink:to="loc_us-gaap_LongLivedAssetsHeldForSaleNameDomain_9dde7a01-6c3f-4b1b-b6d5-bcad3aca8656_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongLivedAssetsHeldForSaleNameDomain_31e8f523-6878-4278-b67c-a34b322f4726" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongLivedAssetsHeldForSaleNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis_9dde7a01-6c3f-4b1b-b6d5-bcad3aca8656" xlink:to="loc_us-gaap_LongLivedAssetsHeldForSaleNameDomain_31e8f523-6878-4278-b67c-a34b322f4726" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_AssetHeldForSaleMember_f96789e7-e1f1-4f76-bc82-742a27129f21" xlink:href="eri-20200630.xsd#eri_AssetHeldForSaleMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongLivedAssetsHeldForSaleNameDomain_31e8f523-6878-4278-b67c-a34b322f4726" xlink:to="loc_eri_AssetHeldForSaleMember_f96789e7-e1f1-4f76-bc82-742a27129f21" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_4776074a-6d18-4b06-b6d3-8f21a2f8da46" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_0675aa3a-dbd8-46e4-a1e4-f94e7af64b04" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_4776074a-6d18-4b06-b6d3-8f21a2f8da46" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_4776074a-6d18-4b06-b6d3-8f21a2f8da46_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_4776074a-6d18-4b06-b6d3-8f21a2f8da46" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_4776074a-6d18-4b06-b6d3-8f21a2f8da46_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_452838d1-369c-4077-a6cd-22587ce4321a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_4776074a-6d18-4b06-b6d3-8f21a2f8da46" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_452838d1-369c-4077-a6cd-22587ce4321a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelatedIntangibleAssetsMember_b4a8b188-ca8f-4afc-ac03-9b2a759577bd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CustomerRelatedIntangibleAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_452838d1-369c-4077-a6cd-22587ce4321a" xlink:to="loc_us-gaap_CustomerRelatedIntangibleAssetsMember_b4a8b188-ca8f-4afc-ac03-9b2a759577bd" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/IntangibleAssetsNetScheduleofOtherandIntangibleAssetsNetDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#IntangibleAssetsNetScheduleofOtherandIntangibleAssetsNetDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/IntangibleAssetsNetScheduleofOtherandIntangibleAssetsNetDetails" xlink:type="extended" id="ifa009953b37d4b339f3fe82e933df5b6_IntangibleAssetsNetScheduleofOtherandIntangibleAssetsNetDetails">
    <link:loc xlink:type="locator" xlink:label="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_3348666e-d54f-4351-8852-37f5874c9dc3" xlink:href="eri-20200630.xsd#eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_efeb51d3-f22c-4b3c-8494-7810f8d9760a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_3348666e-d54f-4351-8852-37f5874c9dc3" xlink:to="loc_us-gaap_Goodwill_efeb51d3-f22c-4b3c-8494-7810f8d9760a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_IndefiniteLivedIntangibleAssetsUsefulLife_070b3012-10fa-4045-8aaa-a2c1b4d00c35" xlink:href="eri-20200630.xsd#eri_IndefiniteLivedIntangibleAssetsUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_3348666e-d54f-4351-8852-37f5874c9dc3" xlink:to="loc_eri_IndefiniteLivedIntangibleAssetsUsefulLife_070b3012-10fa-4045-8aaa-a2c1b4d00c35" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_759632c0-a5e9-45ac-a82c-68e28b45dcd5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_3348666e-d54f-4351-8852-37f5874c9dc3" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_759632c0-a5e9-45ac-a82c-68e28b45dcd5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_IndefiniteLivedIntangibleAssetsUsefulLifeExcludingGoodwill_de518b62-7a8e-4d54-8399-385bc4835161" xlink:href="eri-20200630.xsd#eri_IndefiniteLivedIntangibleAssetsUsefulLifeExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_3348666e-d54f-4351-8852-37f5874c9dc3" xlink:to="loc_eri_IndefiniteLivedIntangibleAssetsUsefulLifeExcludingGoodwill_de518b62-7a8e-4d54-8399-385bc4835161" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_6ebb44a8-63a3-4aa2-af08-6a8dcba77cac" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_3348666e-d54f-4351-8852-37f5874c9dc3" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_6ebb44a8-63a3-4aa2-af08-6a8dcba77cac" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_ffcd2bc9-a301-4391-8fd9-c096ec00f74d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_3348666e-d54f-4351-8852-37f5874c9dc3" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_ffcd2bc9-a301-4391-8fd9-c096ec00f74d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_0bab77f6-f645-4ecf-b8e8-71c7939431d0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_3348666e-d54f-4351-8852-37f5874c9dc3" xlink:to="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_0bab77f6-f645-4ecf-b8e8-71c7939431d0" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_10be28d8-f420-461e-a63f-a6c1ae8fe067" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_3348666e-d54f-4351-8852-37f5874c9dc3" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_10be28d8-f420-461e-a63f-a6c1ae8fe067" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_7f451230-57af-436e-848d-204ad3f00ffb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_3348666e-d54f-4351-8852-37f5874c9dc3" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_7f451230-57af-436e-848d-204ad3f00ffb" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_6e5ec389-c12f-46c3-8b20-bf596a17da3a" xlink:href="eri-20200630.xsd#eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_3348666e-d54f-4351-8852-37f5874c9dc3" xlink:to="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_6e5ec389-c12f-46c3-8b20-bf596a17da3a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_bd1c7e35-fee3-472f-85cc-a92fcd3bf7ea" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_6e5ec389-c12f-46c3-8b20-bf596a17da3a" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_bd1c7e35-fee3-472f-85cc-a92fcd3bf7ea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_bd1c7e35-fee3-472f-85cc-a92fcd3bf7ea_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_bd1c7e35-fee3-472f-85cc-a92fcd3bf7ea" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_bd1c7e35-fee3-472f-85cc-a92fcd3bf7ea_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_049058da-5017-4251-a35d-71461781a73a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_bd1c7e35-fee3-472f-85cc-a92fcd3bf7ea" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_049058da-5017-4251-a35d-71461781a73a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_IndefinitelivedTradeNamesMember_c6f355bd-1509-42b0-aa7f-6eb8444a57d9" xlink:href="eri-20200630.xsd#eri_IndefinitelivedTradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_049058da-5017-4251-a35d-71461781a73a" xlink:to="loc_eri_IndefinitelivedTradeNamesMember_c6f355bd-1509-42b0-aa7f-6eb8444a57d9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LicensingAgreementsMember_fe74dc40-baeb-4403-a6dc-68251616eaa4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LicensingAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_049058da-5017-4251-a35d-71461781a73a" xlink:to="loc_us-gaap_LicensingAgreementsMember_fe74dc40-baeb-4403-a6dc-68251616eaa4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_8fa8ed61-36ba-44b8-8b77-e8b19a79aa3f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_6e5ec389-c12f-46c3-8b20-bf596a17da3a" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_8fa8ed61-36ba-44b8-8b77-e8b19a79aa3f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_8fa8ed61-36ba-44b8-8b77-e8b19a79aa3f_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_8fa8ed61-36ba-44b8-8b77-e8b19a79aa3f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_8fa8ed61-36ba-44b8-8b77-e8b19a79aa3f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_fef32618-09dc-45a6-980c-16c5547b4b63" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_8fa8ed61-36ba-44b8-8b77-e8b19a79aa3f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_fef32618-09dc-45a6-980c-16c5547b4b63" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelatedIntangibleAssetsMember_2277f6d2-eb37-4948-895d-ed9639e08c75" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CustomerRelatedIntangibleAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_fef32618-09dc-45a6-980c-16c5547b4b63" xlink:to="loc_us-gaap_CustomerRelatedIntangibleAssetsMember_2277f6d2-eb37-4948-895d-ed9639e08c75" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_0c573377-a13a-4b83-8bf5-b27ee4450f37" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_6e5ec389-c12f-46c3-8b20-bf596a17da3a" xlink:to="loc_srt_RangeAxis_0c573377-a13a-4b83-8bf5-b27ee4450f37" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_0c573377-a13a-4b83-8bf5-b27ee4450f37_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_0c573377-a13a-4b83-8bf5-b27ee4450f37" xlink:to="loc_srt_RangeMember_0c573377-a13a-4b83-8bf5-b27ee4450f37_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_679593e2-8722-490a-ba09-45ca21e9de22" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_0c573377-a13a-4b83-8bf5-b27ee4450f37" xlink:to="loc_srt_RangeMember_679593e2-8722-490a-ba09-45ca21e9de22" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_5cbe6f49-284b-49a4-ab87-2e546cb2775c" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_679593e2-8722-490a-ba09-45ca21e9de22" xlink:to="loc_srt_MinimumMember_5cbe6f49-284b-49a4-ab87-2e546cb2775c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_27f2e7f9-b695-45bf-bfda-af0963aa023a" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_679593e2-8722-490a-ba09-45ca21e9de22" xlink:to="loc_srt_MaximumMember_27f2e7f9-b695-45bf-bfda-af0963aa023a" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/IntangibleAssetsNetScheduleofChangestoGoodwillDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#IntangibleAssetsNetScheduleofChangestoGoodwillDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/IntangibleAssetsNetScheduleofChangestoGoodwillDetails" xlink:type="extended" id="i2db2c4feaba94380b66ceaf802d0e83d_IntangibleAssetsNetScheduleofChangestoGoodwillDetails"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/IntangibleAssetsNetScheduleofImpairmentChargesRecordedbySegmentDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#IntangibleAssetsNetScheduleofImpairmentChargesRecordedbySegmentDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/IntangibleAssetsNetScheduleofImpairmentChargesRecordedbySegmentDetails" xlink:type="extended" id="iab6dd15bcc5c4a71a4bdabc0f47d7e16_IntangibleAssetsNetScheduleofImpairmentChargesRecordedbySegmentDetails">
    <link:loc xlink:type="locator" xlink:label="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_87616b90-09fe-4e34-a4b8-37e722e16f10" xlink:href="eri-20200630.xsd#eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_2573e41a-f220-44c4-8012-25acc2cee727" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_87616b90-09fe-4e34-a4b8-37e722e16f10" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_2573e41a-f220-44c4-8012-25acc2cee727" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_2faefbbb-191c-4e02-85e6-056e43080a80" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_87616b90-09fe-4e34-a4b8-37e722e16f10" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_2faefbbb-191c-4e02-85e6-056e43080a80" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_461e5e48-3821-4c28-9da2-2adea8d6104e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_87616b90-09fe-4e34-a4b8-37e722e16f10" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_461e5e48-3821-4c28-9da2-2adea8d6104e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseImpairmentLoss_66c26d0b-4dd8-4d70-81e8-90441b804dba" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_87616b90-09fe-4e34-a4b8-37e722e16f10" xlink:to="loc_us-gaap_OperatingLeaseImpairmentLoss_66c26d0b-4dd8-4d70-81e8-90441b804dba" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_f00a293d-0e5f-44ba-94e7-63027ddc1f1c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_87616b90-09fe-4e34-a4b8-37e722e16f10" xlink:to="loc_us-gaap_AssetImpairmentCharges_f00a293d-0e5f-44ba-94e7-63027ddc1f1c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_4be02ce1-6217-4cf4-8818-9cdf23cfe822" xlink:href="eri-20200630.xsd#eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassLineItems_87616b90-09fe-4e34-a4b8-37e722e16f10" xlink:to="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_4be02ce1-6217-4cf4-8818-9cdf23cfe822" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_2afc8ec7-8ac9-4280-85c4-0144601ad41c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_4be02ce1-6217-4cf4-8818-9cdf23cfe822" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_2afc8ec7-8ac9-4280-85c4-0144601ad41c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_2afc8ec7-8ac9-4280-85c4-0144601ad41c_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_2afc8ec7-8ac9-4280-85c4-0144601ad41c" xlink:to="loc_us-gaap_SegmentDomain_2afc8ec7-8ac9-4280-85c4-0144601ad41c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_d08921b9-0425-49a6-a1fa-9f32dc6ec6e6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_2afc8ec7-8ac9-4280-85c4-0144601ad41c" xlink:to="loc_us-gaap_SegmentDomain_d08921b9-0425-49a6-a1fa-9f32dc6ec6e6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_WestSegmentMember_984a6963-03e8-40cc-a6eb-2b9dc558928b" xlink:href="eri-20200630.xsd#eri_WestSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d08921b9-0425-49a6-a1fa-9f32dc6ec6e6" xlink:to="loc_eri_WestSegmentMember_984a6963-03e8-40cc-a6eb-2b9dc558928b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SouthSegmentMember_170309b1-79e0-4088-bbc4-375a95966ebb" xlink:href="eri-20200630.xsd#eri_SouthSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d08921b9-0425-49a6-a1fa-9f32dc6ec6e6" xlink:to="loc_eri_SouthSegmentMember_170309b1-79e0-4088-bbc4-375a95966ebb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MidwestSegmentMember_90b95fab-6aca-45ee-ba49-8d0806e40364" xlink:href="eri-20200630.xsd#eri_MidwestSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d08921b9-0425-49a6-a1fa-9f32dc6ec6e6" xlink:to="loc_eri_MidwestSegmentMember_90b95fab-6aca-45ee-ba49-8d0806e40364" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_d0a4b002-fab3-4929-8aef-a6b2adb55cff" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_eri_FiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTable_4be02ce1-6217-4cf4-8818-9cdf23cfe822" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_d0a4b002-fab3-4929-8aef-a6b2adb55cff" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_d0a4b002-fab3-4929-8aef-a6b2adb55cff_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_d0a4b002-fab3-4929-8aef-a6b2adb55cff" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_d0a4b002-fab3-4929-8aef-a6b2adb55cff_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_4bf629df-03be-4a14-b210-dfaff5161461" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_d0a4b002-fab3-4929-8aef-a6b2adb55cff" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_4bf629df-03be-4a14-b210-dfaff5161461" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeNamesMember_2a6f9d8b-d5b9-4d93-9aa4-2e5151d6172c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_4bf629df-03be-4a14-b210-dfaff5161461" xlink:to="loc_us-gaap_TradeNamesMember_2a6f9d8b-d5b9-4d93-9aa4-2e5151d6172c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentMember_af8a3781-9f36-43ff-8da5-10e2b364a6c0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_4bf629df-03be-4a14-b210-dfaff5161461" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentMember_af8a3781-9f36-43ff-8da5-10e2b364a6c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_RightOfUseAssetsMember_075aed27-c0cc-4bef-9839-c519fd57bbb0" xlink:href="eri-20200630.xsd#eri_RightOfUseAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_4bf629df-03be-4a14-b210-dfaff5161461" xlink:to="loc_eri_RightOfUseAssetsMember_075aed27-c0cc-4bef-9839-c519fd57bbb0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_bd06db7b-f32e-42ad-92d7-d2f3c2892dc0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_bd06db7b-f32e-42ad-92d7-d2f3c2892dc0_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_1f071749-2959-4867-9248-e2f875578324" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_96b34849-ea7b-471a-b019-4fb4c0e38e14" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_96b34849-ea7b-471a-b019-4fb4c0e38e14_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_5ab8dfcf-b8bc-4e6e-918f-c0055aa13605" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/IncomeTaxes" xlink:type="simple" xlink:href="eri-20200630.xsd#IncomeTaxes"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/IncomeTaxes" xlink:type="extended" id="i7ec006cf28da41148bef9f888b0875d0_IncomeTaxes"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/IncomeTaxesAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#IncomeTaxesAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/IncomeTaxesAdditionalInformationDetails" xlink:type="extended" id="ic4023133943f4db593c58cb28fe6d505_IncomeTaxesAdditionalInformationDetails"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LongTermFinancingObligation" xlink:type="simple" xlink:href="eri-20200630.xsd#LongTermFinancingObligation"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LongTermFinancingObligation" xlink:type="extended" id="i2f469207397b4278912c36bc985df457_LongTermFinancingObligation"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LongTermFinancingObligationTables" xlink:type="simple" xlink:href="eri-20200630.xsd#LongTermFinancingObligationTables"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LongTermFinancingObligationTables" xlink:type="extended" id="ie2fae46789e640bf8a85e1b63d60041e_LongTermFinancingObligationTables"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LongTermFinancingObligationAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#LongTermFinancingObligationAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LongTermFinancingObligationAdditionalInformationDetails" xlink:type="extended" id="i9c00ba0226ff487cb5382d7eeed3a518_LongTermFinancingObligationAdditionalInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SaleLeasebackTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_FailedSaleLeasebackTransactionLeaseTerm_46a48fca-6ffa-4cbe-9b39-d148dff26ce2" xlink:href="eri-20200630.xsd#eri_FailedSaleLeasebackTransactionLeaseTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_eri_FailedSaleLeasebackTransactionLeaseTerm_46a48fca-6ffa-4cbe-9b39-d148dff26ce2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_FailedSaleLeasebackTransactionImputedInterestRate_4c50d39c-8d8e-4a07-bdf8-e94ef7a94f08" xlink:href="eri-20200630.xsd#eri_FailedSaleLeasebackTransactionImputedInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_eri_FailedSaleLeasebackTransactionImputedInterestRate_4c50d39c-8d8e-4a07-bdf8-e94ef7a94f08" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_8eda7bef-632d-4f7a-90ad-2a87d12dba41" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_8eda7bef-632d-4f7a-90ad-2a87d12dba41" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_LesseeOperatingLeaseNumberOfRenewalOptions_d25cd18a-957b-412a-890b-9de9a6a1528d" xlink:href="eri-20200630.xsd#eri_LesseeOperatingLeaseNumberOfRenewalOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_eri_LesseeOperatingLeaseNumberOfRenewalOptions_d25cd18a-957b-412a-890b-9de9a6a1528d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_0da0ba1f-43c3-4df2-84ca-695bb8e9571b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseRenewalTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_0da0ba1f-43c3-4df2-84ca-695bb8e9571b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_LeaseAgreementNonEscalatingPortionBaseRent_d67ff938-1404-48c6-9f0e-a997df2749d6" xlink:href="eri-20200630.xsd#eri_LeaseAgreementNonEscalatingPortionBaseRent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_eri_LeaseAgreementNonEscalatingPortionBaseRent_d67ff938-1404-48c6-9f0e-a997df2749d6" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MasterLeaseBaseRent_46671837-aee4-4202-81a3-a30d4a5754dd" xlink:href="eri-20200630.xsd#eri_MasterLeaseBaseRent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_eri_MasterLeaseBaseRent_46671837-aee4-4202-81a3-a30d4a5754dd" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MasterLeaseTerm_11f9a6c5-5f71-4a6a-a70e-b9bb8c7bf50f" xlink:href="eri-20200630.xsd#eri_MasterLeaseTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_eri_MasterLeaseTerm_11f9a6c5-5f71-4a6a-a70e-b9bb8c7bf50f" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_PercentageOfMasterLeaseTransactionAnnualEscalator_723449f3-19ec-4a13-ac24-114307be7c66" xlink:href="eri-20200630.xsd#eri_PercentageOfMasterLeaseTransactionAnnualEscalator"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_eri_PercentageOfMasterLeaseTransactionAnnualEscalator_723449f3-19ec-4a13-ac24-114307be7c66" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_RevenueToRentRatioAsBaseToComputeBuildingRentForFirstFiveYears_ae090b83-108e-4ad3-b7f1-4058748142e6" xlink:href="eri-20200630.xsd#eri_RevenueToRentRatioAsBaseToComputeBuildingRentForFirstFiveYears"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_eri_RevenueToRentRatioAsBaseToComputeBuildingRentForFirstFiveYears_ae090b83-108e-4ad3-b7f1-4058748142e6" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_RevenueToRentRatioAsBaseToComputeBuildingRentForThereafter_82d72ac4-484b-4864-bfaf-6732cb1683ff" xlink:href="eri-20200630.xsd#eri_RevenueToRentRatioAsBaseToComputeBuildingRentForThereafter"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_eri_RevenueToRentRatioAsBaseToComputeBuildingRentForThereafter_82d72ac4-484b-4864-bfaf-6732cb1683ff" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_PercentageOfRentPayableAdjustedOnActualNetRevenuesLeasedPropertiesTerm_9cd51762-119a-4fad-8d64-38c9c8690c1c" xlink:href="eri-20200630.xsd#eri_PercentageOfRentPayableAdjustedOnActualNetRevenuesLeasedPropertiesTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_eri_PercentageOfRentPayableAdjustedOnActualNetRevenuesLeasedPropertiesTerm_9cd51762-119a-4fad-8d64-38c9c8690c1c" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_OperatingLeasingExpectedFutureAnnualRentPayable_cc6d919c-2532-49b5-868f-771abb89313f" xlink:href="eri-20200630.xsd#eri_OperatingLeasingExpectedFutureAnnualRentPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_eri_OperatingLeasingExpectedFutureAnnualRentPayable_cc6d919c-2532-49b5-868f-771abb89313f" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MasterLeasePayment_7fb9fa9b-2f4a-48a5-a914-1c2266f7b251" xlink:href="eri-20200630.xsd#eri_MasterLeasePayment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_eri_MasterLeasePayment_7fb9fa9b-2f4a-48a5-a914-1c2266f7b251" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MasterLeaseInterestExpense_d18217c0-64c7-4fd5-be88-b4af2b491d73" xlink:href="eri-20200630.xsd#eri_MasterLeaseInterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_eri_MasterLeaseInterestExpense_d18217c0-64c7-4fd5-be88-b4af2b491d73" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleLeasebackTransactionTable_1b7497e7-647b-4ffe-ad61-8636bc063b68" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SaleLeasebackTransactionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SaleLeasebackTransactionLineItems_b0f145e3-586b-452e-8eed-ce37a1f3b621" xlink:to="loc_us-gaap_SaleLeasebackTransactionTable_1b7497e7-647b-4ffe-ad61-8636bc063b68" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfArrangementAxis_edaa3da5-cf37-405e-bba0-ec77991d498b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfArrangementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SaleLeasebackTransactionTable_1b7497e7-647b-4ffe-ad61-8636bc063b68" xlink:to="loc_us-gaap_TypeOfArrangementAxis_edaa3da5-cf37-405e-bba0-ec77991d498b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_edaa3da5-cf37-405e-bba0-ec77991d498b_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TypeOfArrangementAxis_edaa3da5-cf37-405e-bba0-ec77991d498b" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_edaa3da5-cf37-405e-bba0-ec77991d498b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_d6db5adc-a276-4a2b-a249-f83f3259636a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TypeOfArrangementAxis_edaa3da5-cf37-405e-bba0-ec77991d498b" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_d6db5adc-a276-4a2b-a249-f83f3259636a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MasterLeaseArrangementMember_1c1456d4-8a6b-416b-9a53-ef695c7d1668" xlink:href="eri-20200630.xsd#eri_MasterLeaseArrangementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_d6db5adc-a276-4a2b-a249-f83f3259636a" xlink:to="loc_eri_MasterLeaseArrangementMember_1c1456d4-8a6b-416b-9a53-ef695c7d1668" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_04d82653-aa47-4086-ba7b-7fc75d764b0f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SaleLeasebackTransactionTable_1b7497e7-647b-4ffe-ad61-8636bc063b68" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_04d82653-aa47-4086-ba7b-7fc75d764b0f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_04d82653-aa47-4086-ba7b-7fc75d764b0f_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_04d82653-aa47-4086-ba7b-7fc75d764b0f" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_04d82653-aa47-4086-ba7b-7fc75d764b0f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1c3a8605-32e3-4045-ba52-a34d23a5b6d7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_04d82653-aa47-4086-ba7b-7fc75d764b0f" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1c3a8605-32e3-4045-ba52-a34d23a5b6d7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_62bc4caa-314f-42ca-81d9-a81cab000fcb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BuildingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1c3a8605-32e3-4045-ba52-a34d23a5b6d7" xlink:to="loc_us-gaap_BuildingMember_62bc4caa-314f-42ca-81d9-a81cab000fcb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandMember_0594276d-9a45-4bd3-913e-63b7d3b6e407" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LandMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1c3a8605-32e3-4045-ba52-a34d23a5b6d7" xlink:to="loc_us-gaap_LandMember_0594276d-9a45-4bd3-913e-63b7d3b6e407" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_GamingAndLeisurePropertiesMember_16a8fd6a-e690-4bf8-a77c-2f6be80995f1" xlink:href="eri-20200630.xsd#eri_GamingAndLeisurePropertiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1c3a8605-32e3-4045-ba52-a34d23a5b6d7" xlink:to="loc_eri_GamingAndLeisurePropertiesMember_16a8fd6a-e690-4bf8-a77c-2f6be80995f1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_941b3b6b-12b8-4075-ad50-23ac5c4f538d" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SaleLeasebackTransactionTable_1b7497e7-647b-4ffe-ad61-8636bc063b68" xlink:to="loc_srt_RangeAxis_941b3b6b-12b8-4075-ad50-23ac5c4f538d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_941b3b6b-12b8-4075-ad50-23ac5c4f538d_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_941b3b6b-12b8-4075-ad50-23ac5c4f538d" xlink:to="loc_srt_RangeMember_941b3b6b-12b8-4075-ad50-23ac5c4f538d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_8d2fbe9f-2ead-4dfe-93bf-7d2d9c710e38" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_941b3b6b-12b8-4075-ad50-23ac5c4f538d" xlink:to="loc_srt_RangeMember_8d2fbe9f-2ead-4dfe-93bf-7d2d9c710e38" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_ef61c408-dd92-4db3-afb6-dd570430d252" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_8d2fbe9f-2ead-4dfe-93bf-7d2d9c710e38" xlink:to="loc_srt_MinimumMember_ef61c408-dd92-4db3-afb6-dd570430d252" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_052f8469-f517-4013-8ce1-7914ceb84cdf" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_8d2fbe9f-2ead-4dfe-93bf-7d2d9c710e38" xlink:to="loc_srt_MaximumMember_052f8469-f517-4013-8ce1-7914ceb84cdf" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LongTermFinancingObligationScheduleofFutureMinimumPaymentsRelatedtoMasterLeaseFinancingObligationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#LongTermFinancingObligationScheduleofFutureMinimumPaymentsRelatedtoMasterLeaseFinancingObligationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LongTermFinancingObligationScheduleofFutureMinimumPaymentsRelatedtoMasterLeaseFinancingObligationDetails" xlink:type="extended" id="i29bc34266a704a26aaba3174b9a56842_LongTermFinancingObligationScheduleofFutureMinimumPaymentsRelatedtoMasterLeaseFinancingObligationDetails"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LongTermFinancingObligationScheduleofFutureMinimumPaymentsRelatedtoMasterLeaseFinancingObligationDescriptorsDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#LongTermFinancingObligationScheduleofFutureMinimumPaymentsRelatedtoMasterLeaseFinancingObligationDescriptorsDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LongTermFinancingObligationScheduleofFutureMinimumPaymentsRelatedtoMasterLeaseFinancingObligationDescriptorsDetails" xlink:type="extended" id="i38d8817c36484bb3a728018b41db2c83_LongTermFinancingObligationScheduleofFutureMinimumPaymentsRelatedtoMasterLeaseFinancingObligationDescriptorsDetails"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LongTermDebt" xlink:type="simple" xlink:href="eri-20200630.xsd#LongTermDebt"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LongTermDebt" xlink:type="extended" id="i912e8dbac1c448ed813875cf4a96404f_LongTermDebt"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LongTermDebtTables" xlink:type="simple" xlink:href="eri-20200630.xsd#LongTermDebtTables"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LongTermDebtTables" xlink:type="extended" id="i0e9ab56eaeae458c9eb113c268d4c7cf_LongTermDebtTables"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LongTermDebtSummaryofLongtermDebtDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#LongTermDebtSummaryofLongtermDebtDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LongTermDebtSummaryofLongtermDebtDetails" xlink:type="extended" id="i15e3fc432f65486086d168add12f3d7d_LongTermDebtSummaryofLongtermDebtDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_6670731f-7843-462f-a112-3a06d646cb09" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_f33d7f5c-be3f-4a97-9537-b64c174843ee" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6670731f-7843-462f-a112-3a06d646cb09" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_f33d7f5c-be3f-4a97-9537-b64c174843ee" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_c2eb9992-e3a0-4b9e-bac2-1977a499b6e4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6670731f-7843-462f-a112-3a06d646cb09" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_c2eb9992-e3a0-4b9e-bac2-1977a499b6e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedPremium_058e942d-90c1-41bf-bec0-960219893c21" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentUnamortizedPremium"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6670731f-7843-462f-a112-3a06d646cb09" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedPremium_058e942d-90c1-41bf-bec0-960219893c21" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnamortizedDebtIssuanceExpense_6336b298-0dce-4ea6-84da-97b7f57fce24" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UnamortizedDebtIssuanceExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6670731f-7843-462f-a112-3a06d646cb09" xlink:to="loc_us-gaap_UnamortizedDebtIssuanceExpense_6336b298-0dce-4ea6-84da-97b7f57fce24" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_517f047c-6c05-4517-bde6-da1c71cb825d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6670731f-7843-462f-a112-3a06d646cb09" xlink:to="loc_us-gaap_LongTermDebt_517f047c-6c05-4517-bde6-da1c71cb825d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_c89d8a76-4061-42be-8a08-a8eed685cb2d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6670731f-7843-462f-a112-3a06d646cb09" xlink:to="loc_us-gaap_LineOfCredit_c89d8a76-4061-42be-8a08-a8eed685cb2d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayable_20c2b6e0-0a14-40c4-ab1d-8aae03acfe9f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NotesPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6670731f-7843-462f-a112-3a06d646cb09" xlink:to="loc_us-gaap_NotesPayable_20c2b6e0-0a14-40c4-ab1d-8aae03acfe9f" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermNotesPayable_134e0e2a-281a-4ca6-b4af-56f3d141c53b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermNotesPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6670731f-7843-462f-a112-3a06d646cb09" xlink:to="loc_us-gaap_LongTermNotesPayable_134e0e2a-281a-4ca6-b4af-56f3d141c53b" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_8f8e69a5-66ca-48f5-8752-8d7d15f5a8d1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6670731f-7843-462f-a112-3a06d646cb09" xlink:to="loc_us-gaap_LongTermDebtCurrent_8f8e69a5-66ca-48f5-8752-8d7d15f5a8d1" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_c06083df-1c1f-40a3-a96e-da1f172a0ac8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6670731f-7843-462f-a112-3a06d646cb09" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_c06083df-1c1f-40a3-a96e-da1f172a0ac8" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_48fcc850-95fb-4fe8-86ad-72ed68be5a28" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6670731f-7843-462f-a112-3a06d646cb09" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_48fcc850-95fb-4fe8-86ad-72ed68be5a28" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_3b4d6a18-f772-47dc-904d-37fcd4193db1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6670731f-7843-462f-a112-3a06d646cb09" xlink:to="loc_us-gaap_DebtInstrumentTable_3b4d6a18-f772-47dc-904d-37fcd4193db1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_850f00c9-5baa-4a9c-9041-a822fc280801" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_3b4d6a18-f772-47dc-904d-37fcd4193db1" xlink:to="loc_us-gaap_DebtInstrumentAxis_850f00c9-5baa-4a9c-9041-a822fc280801" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_850f00c9-5baa-4a9c-9041-a822fc280801_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_850f00c9-5baa-4a9c-9041-a822fc280801" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_850f00c9-5baa-4a9c-9041-a822fc280801_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_74630f9a-b9aa-4490-9e13-2cd2a194cb07" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_850f00c9-5baa-4a9c-9041-a822fc280801" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_74630f9a-b9aa-4490-9e13-2cd2a194cb07" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_TermLoanUnderSecuredCreditFacilityMember_24bb463d-4d2f-4218-942a-5c6fe130dc5b" xlink:href="eri-20200630.xsd#eri_TermLoanUnderSecuredCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_74630f9a-b9aa-4490-9e13-2cd2a194cb07" xlink:to="loc_eri_TermLoanUnderSecuredCreditFacilityMember_24bb463d-4d2f-4218-942a-5c6fe130dc5b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SixPercentSeniorNotesDueTwoThousandTwentySixMember_30436804-3d80-418e-9c51-77266fe0b218" xlink:href="eri-20200630.xsd#eri_SixPercentSeniorNotesDueTwoThousandTwentySixMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_74630f9a-b9aa-4490-9e13-2cd2a194cb07" xlink:to="loc_eri_SixPercentSeniorNotesDueTwoThousandTwentySixMember_30436804-3d80-418e-9c51-77266fe0b218" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SixPercentSeniorNotesDueTwoThousandTwentyFiveMember_48c09c2c-af8f-49a5-a7f8-89aa02d0bacf" xlink:href="eri-20200630.xsd#eri_SixPercentSeniorNotesDueTwoThousandTwentyFiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_74630f9a-b9aa-4490-9e13-2cd2a194cb07" xlink:to="loc_eri_SixPercentSeniorNotesDueTwoThousandTwentyFiveMember_48c09c2c-af8f-49a5-a7f8-89aa02d0bacf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SevenPercentSeniorNotesDueTwoThousandTwentyThreeMember_d1fda716-516d-4f92-a87a-57fcb834f7c7" xlink:href="eri-20200630.xsd#eri_SevenPercentSeniorNotesDueTwoThousandTwentyThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_74630f9a-b9aa-4490-9e13-2cd2a194cb07" xlink:to="loc_eri_SevenPercentSeniorNotesDueTwoThousandTwentyThreeMember_d1fda716-516d-4f92-a87a-57fcb834f7c7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_RevolvingCreditFacilityUnderSecuredCreditFacilityMember_43e66153-55d8-4fb4-b8e3-4c72a678a72d" xlink:href="eri-20200630.xsd#eri_RevolvingCreditFacilityUnderSecuredCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_74630f9a-b9aa-4490-9e13-2cd2a194cb07" xlink:to="loc_eri_RevolvingCreditFacilityUnderSecuredCreditFacilityMember_43e66153-55d8-4fb4-b8e3-4c72a678a72d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_LumiereLoanMember_87ca48e9-9fe6-4fb3-9a31-4d5cdb3e69d8" xlink:href="eri-20200630.xsd#eri_LumiereLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_74630f9a-b9aa-4490-9e13-2cd2a194cb07" xlink:to="loc_eri_LumiereLoanMember_87ca48e9-9fe6-4fb3-9a31-4d5cdb3e69d8" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes7Due2023Member_8cc29921-5608-4949-86ba-e84972703536" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes7Due2023Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_74630f9a-b9aa-4490-9e13-2cd2a194cb07" xlink:to="loc_eri_SeniorSecuredNotes7Due2023Member_8cc29921-5608-4949-86ba-e84972703536" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes6Due2025Member_4e822145-3758-4655-b1d1-cffd87785b9c" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes6Due2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_74630f9a-b9aa-4490-9e13-2cd2a194cb07" xlink:to="loc_eri_SeniorSecuredNotes6Due2025Member_4e822145-3758-4655-b1d1-cffd87785b9c" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes6Due2026Member_17f9b3a1-6e78-40ee-901d-8f5b21e66555" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes6Due2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_74630f9a-b9aa-4490-9e13-2cd2a194cb07" xlink:to="loc_eri_SeniorSecuredNotes6Due2026Member_17f9b3a1-6e78-40ee-901d-8f5b21e66555" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_91fc923c-09b2-4b3d-8411-b7b97a1af3a1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_3b4d6a18-f772-47dc-904d-37fcd4193db1" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_91fc923c-09b2-4b3d-8411-b7b97a1af3a1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_91fc923c-09b2-4b3d-8411-b7b97a1af3a1_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_91fc923c-09b2-4b3d-8411-b7b97a1af3a1" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_91fc923c-09b2-4b3d-8411-b7b97a1af3a1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_2247d0cb-d550-4066-962e-e1eb4b320df3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_91fc923c-09b2-4b3d-8411-b7b97a1af3a1" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_2247d0cb-d550-4066-962e-e1eb4b320df3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_28e434bc-6530-445d-ab8f-ada569b37b22" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_2247d0cb-d550-4066-962e-e1eb4b320df3" xlink:to="loc_us-gaap_SeniorNotesMember_28e434bc-6530-445d-ab8f-ada569b37b22" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LongTermDebtAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#LongTermDebtAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LongTermDebtAdditionalInformationDetails" xlink:type="extended" id="ie1bb8d15068448ada5f5c8f7e261de90_LongTermDebtAdditionalInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_e73ef5e8-3028-4ce2-afdb-f7db8f124f75" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_e73ef5e8-3028-4ce2-afdb-f7db8f124f75" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_aafe830f-95ed-4ef0-902d-1cbf1de946d9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_aafe830f-95ed-4ef0-902d-1cbf1de946d9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_73ebd03e-bb74-412c-a093-85e3a0758842" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_73ebd03e-bb74-412c-a093-85e3a0758842" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_f9f91fcb-f859-4164-b2a9-b163ff0db4b0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_f9f91fcb-f859-4164-b2a9-b163ff0db4b0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_3eec26c9-f923-42db-9db6-2268fc6e2de5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_3eec26c9-f923-42db-9db6-2268fc6e2de5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_99f4d8f8-a502-4583-b9e4-9e62fdd6d082" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_99f4d8f8-a502-4583-b9e4-9e62fdd6d082" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_8ab6bef9-7875-488c-af29-b0c25ced0957" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_8ab6bef9-7875-488c-af29-b0c25ced0957" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_a5dc5bc5-20e5-4531-a154-49c9f776fbc2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_a5dc5bc5-20e5-4531-a154-49c9f776fbc2" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_402a16cc-237a-463e-8833-768220029e52" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_402a16cc-237a-463e-8833-768220029e52" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_def7cfd1-6454-4c99-9ad6-5420ab67cb5b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_def7cfd1-6454-4c99-9ad6-5420ab67cb5b" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_81331dff-d176-42bc-a43b-01dce5e6a3d2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_81331dff-d176-42bc-a43b-01dce5e6a3d2" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtTerm_dd606263-2db8-4b9d-948c-bf328553794b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_LongTermDebtTerm_dd606263-2db8-4b9d-948c-bf328553794b" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_ebc1944e-2d9a-4328-9639-63a2190747c5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_LongTermDebt_ebc1944e-2d9a-4328-9639-63a2190747c5" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AreaOfLand_66582bac-4448-41e8-8461-8ea60c992c4f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AreaOfLand"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_AreaOfLand_66582bac-4448-41e8-8461-8ea60c992c4f" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_20e525df-d330-4a4b-8134-a35e365d7911" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c96fab69-fcbc-4667-a2ac-bd972904a991" xlink:to="loc_us-gaap_DebtInstrumentTable_20e525df-d330-4a4b-8134-a35e365d7911" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_232c103e-5fd4-44da-82b9-253f3f85ca0c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_20e525df-d330-4a4b-8134-a35e365d7911" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_232c103e-5fd4-44da-82b9-253f3f85ca0c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_232c103e-5fd4-44da-82b9-253f3f85ca0c_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_232c103e-5fd4-44da-82b9-253f3f85ca0c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_232c103e-5fd4-44da-82b9-253f3f85ca0c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_4feaa80c-6f83-437d-ad22-02195d063490" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_232c103e-5fd4-44da-82b9-253f3f85ca0c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_4feaa80c-6f83-437d-ad22-02195d063490" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_f42256d6-22df-4e19-a6c8-a6aa32509b53" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_4feaa80c-6f83-437d-ad22-02195d063490" xlink:to="loc_us-gaap_SeniorNotesMember_f42256d6-22df-4e19-a6c8-a6aa32509b53" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_15786cae-6ded-4ddf-933c-fa83bad1b41d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_4feaa80c-6f83-437d-ad22-02195d063490" xlink:to="loc_us-gaap_LineOfCreditMember_15786cae-6ded-4ddf-933c-fa83bad1b41d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_2cb2fafb-92fb-474f-a550-ed9760dc212f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_20e525df-d330-4a4b-8134-a35e365d7911" xlink:to="loc_us-gaap_DebtInstrumentAxis_2cb2fafb-92fb-474f-a550-ed9760dc212f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_2cb2fafb-92fb-474f-a550-ed9760dc212f_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_2cb2fafb-92fb-474f-a550-ed9760dc212f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_2cb2fafb-92fb-474f-a550-ed9760dc212f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_05010e8b-0d2c-4874-857a-ecd727b357e8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_2cb2fafb-92fb-474f-a550-ed9760dc212f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_05010e8b-0d2c-4874-857a-ecd727b357e8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes6250Due2025Member_57c6044d-d35c-410c-b39e-578023a8a43e" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes6250Due2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_05010e8b-0d2c-4874-857a-ecd727b357e8" xlink:to="loc_eri_SeniorSecuredNotes6250Due2025Member_57c6044d-d35c-410c-b39e-578023a8a43e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes8125Due2027Member_b909e027-fc9a-4e7f-bd94-91e91bd373fd" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes8125Due2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_05010e8b-0d2c-4874-857a-ecd727b357e8" xlink:to="loc_eri_SeniorSecuredNotes8125Due2027Member_b909e027-fc9a-4e7f-bd94-91e91bd373fd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes5750Due2025Member_bd5d7de4-cf41-4955-85b7-f8d69d52fd8f" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes5750Due2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_05010e8b-0d2c-4874-857a-ecd727b357e8" xlink:to="loc_eri_SeniorSecuredNotes5750Due2025Member_bd5d7de4-cf41-4955-85b7-f8d69d52fd8f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes7Due2023Member_d56aff1e-76cc-4855-b72d-215c50670fc0" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes7Due2023Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_05010e8b-0d2c-4874-857a-ecd727b357e8" xlink:to="loc_eri_SeniorSecuredNotes7Due2023Member_d56aff1e-76cc-4855-b72d-215c50670fc0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes6Due2025Member_1808d470-0cf2-4418-8630-4b0e9b9c5eae" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes6Due2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_05010e8b-0d2c-4874-857a-ecd727b357e8" xlink:to="loc_eri_SeniorSecuredNotes6Due2025Member_1808d470-0cf2-4418-8630-4b0e9b9c5eae" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes6Due2026Member_aae30705-f373-4c1e-a762-8508544daf6c" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes6Due2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_05010e8b-0d2c-4874-857a-ecd727b357e8" xlink:to="loc_eri_SeniorSecuredNotes6Due2026Member_aae30705-f373-4c1e-a762-8508544daf6c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_f3bdbd06-5377-4388-9b0b-63cdb67f4a7e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_20e525df-d330-4a4b-8134-a35e365d7911" xlink:to="loc_us-gaap_CreditFacilityAxis_f3bdbd06-5377-4388-9b0b-63cdb67f4a7e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_f3bdbd06-5377-4388-9b0b-63cdb67f4a7e_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_f3bdbd06-5377-4388-9b0b-63cdb67f4a7e" xlink:to="loc_us-gaap_CreditFacilityDomain_f3bdbd06-5377-4388-9b0b-63cdb67f4a7e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_0d62eb85-3313-431e-8dfd-4e46015acb91" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_f3bdbd06-5377-4388-9b0b-63cdb67f4a7e" xlink:to="loc_us-gaap_CreditFacilityDomain_0d62eb85-3313-431e-8dfd-4e46015acb91" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_7286199e-9ca5-4e73-83d5-99996e1cb7cc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_0d62eb85-3313-431e-8dfd-4e46015acb91" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_7286199e-9ca5-4e73-83d5-99996e1cb7cc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityAxis_d435136e-4fee-4ece-ae89-01f50e5e18ff" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_20e525df-d330-4a4b-8134-a35e365d7911" xlink:to="loc_us-gaap_LineOfCreditFacilityAxis_d435136e-4fee-4ece-ae89-01f50e5e18ff" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_d435136e-4fee-4ece-ae89-01f50e5e18ff_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_d435136e-4fee-4ece-ae89-01f50e5e18ff" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_d435136e-4fee-4ece-ae89-01f50e5e18ff_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_212d5802-50d9-4455-b120-8beb1d80c652" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_d435136e-4fee-4ece-ae89-01f50e5e18ff" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_212d5802-50d9-4455-b120-8beb1d80c652" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_VICIPropertiesLPMember_b5ad2dff-9a5a-47ce-8677-b4774b16ceae" xlink:href="eri-20200630.xsd#eri_VICIPropertiesLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLenderDomain_212d5802-50d9-4455-b120-8beb1d80c652" xlink:to="loc_eri_VICIPropertiesLPMember_b5ad2dff-9a5a-47ce-8677-b4774b16ceae" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LongTermDebtTermLoanandRevolvingCreditFacilityAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#LongTermDebtTermLoanandRevolvingCreditFacilityAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LongTermDebtTermLoanandRevolvingCreditFacilityAdditionalInformationDetails" xlink:type="extended" id="idc35bea1c2a74ab29f87e2da046fd687_LongTermDebtTermLoanandRevolvingCreditFacilityAdditionalInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_e24535da-6991-4912-91d1-a21116087eb6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_3f6d5fad-7ea0-473b-b049-59af2f8289da" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e24535da-6991-4912-91d1-a21116087eb6" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_3f6d5fad-7ea0-473b-b049-59af2f8289da" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_d0d5a1c6-2a0a-4d79-b64b-50ee349110a8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromLinesOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e24535da-6991-4912-91d1-a21116087eb6" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_d0d5a1c6-2a0a-4d79-b64b-50ee349110a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_7245f09d-fc28-451e-956f-0d95f705e64b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfLinesOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e24535da-6991-4912-91d1-a21116087eb6" xlink:to="loc_us-gaap_RepaymentsOfLinesOfCredit_7245f09d-fc28-451e-956f-0d95f705e64b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_61e19058-3aba-42d6-bead-07205cada5bb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e24535da-6991-4912-91d1-a21116087eb6" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_61e19058-3aba-42d6-bead-07205cada5bb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_1ef406a2-9b9d-40d9-8c15-f46a0ddbd46d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e24535da-6991-4912-91d1-a21116087eb6" xlink:to="loc_us-gaap_LineOfCredit_1ef406a2-9b9d-40d9-8c15-f46a0ddbd46d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount_95762186-85ae-4c15-8c8a-edd6bb56e70d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e24535da-6991-4912-91d1-a21116087eb6" xlink:to="loc_us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount_95762186-85ae-4c15-8c8a-edd6bb56e70d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_a8d4a923-8b0d-4ec1-a5b5-72bbaaa82dad" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e24535da-6991-4912-91d1-a21116087eb6" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_a8d4a923-8b0d-4ec1-a5b5-72bbaaa82dad" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_06a3e7d6-667a-48f8-815d-5a075ba5bb2c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e24535da-6991-4912-91d1-a21116087eb6" xlink:to="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_06a3e7d6-667a-48f8-815d-5a075ba5bb2c" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtWeightedAverageInterestRate_cbab2358-e37d-416b-aef1-26bc068774fa" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtWeightedAverageInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e24535da-6991-4912-91d1-a21116087eb6" xlink:to="loc_us-gaap_DebtWeightedAverageInterestRate_cbab2358-e37d-416b-aef1-26bc068774fa" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_287300dc-88c1-4ea7-aebe-152fad69f6fd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e24535da-6991-4912-91d1-a21116087eb6" xlink:to="loc_us-gaap_DebtInstrumentTable_287300dc-88c1-4ea7-aebe-152fad69f6fd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_02876c8a-fd16-423c-afad-836d35d4f9a3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_287300dc-88c1-4ea7-aebe-152fad69f6fd" xlink:to="loc_us-gaap_CreditFacilityAxis_02876c8a-fd16-423c-afad-836d35d4f9a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_02876c8a-fd16-423c-afad-836d35d4f9a3_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_02876c8a-fd16-423c-afad-836d35d4f9a3" xlink:to="loc_us-gaap_CreditFacilityDomain_02876c8a-fd16-423c-afad-836d35d4f9a3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_d502c445-db93-476f-af36-c7417b27f57e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_02876c8a-fd16-423c-afad-836d35d4f9a3" xlink:to="loc_us-gaap_CreditFacilityDomain_d502c445-db93-476f-af36-c7417b27f57e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_TermLoanUnderSecuredCreditFacilityMember_5c1f8246-49fa-41b6-b72d-5b5963e5a80c" xlink:href="eri-20200630.xsd#eri_TermLoanUnderSecuredCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_d502c445-db93-476f-af36-c7417b27f57e" xlink:to="loc_eri_TermLoanUnderSecuredCreditFacilityMember_5c1f8246-49fa-41b6-b72d-5b5963e5a80c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_RevolvingCreditFacilityUnderSecuredCreditFacilityMember_b977519b-82f6-4b98-919c-14fcb4f5ea49" xlink:href="eri-20200630.xsd#eri_RevolvingCreditFacilityUnderSecuredCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_d502c445-db93-476f-af36-c7417b27f57e" xlink:to="loc_eri_RevolvingCreditFacilityUnderSecuredCreditFacilityMember_b977519b-82f6-4b98-919c-14fcb4f5ea49" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LetterOfCreditMember_ec7fc479-ad86-4605-a187-720e569ff191" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LetterOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_d502c445-db93-476f-af36-c7417b27f57e" xlink:to="loc_us-gaap_LetterOfCreditMember_ec7fc479-ad86-4605-a187-720e569ff191" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_TermLoanUnderSecuredCreditFacilityMember_a59def82-5887-43c6-b9d4-a10f5550c020" xlink:href="eri-20200630.xsd#eri_TermLoanUnderSecuredCreditFacilityMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_d53d0764-470f-4868-89da-b79e8ed7e158" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_287300dc-88c1-4ea7-aebe-152fad69f6fd" xlink:to="loc_us-gaap_DebtInstrumentAxis_d53d0764-470f-4868-89da-b79e8ed7e158" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_d53d0764-470f-4868-89da-b79e8ed7e158_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_d53d0764-470f-4868-89da-b79e8ed7e158" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_d53d0764-470f-4868-89da-b79e8ed7e158_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_2b638b73-6a69-48dc-9bee-65b8f47ba338" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_d53d0764-470f-4868-89da-b79e8ed7e158" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_2b638b73-6a69-48dc-9bee-65b8f47ba338" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SixPercentSeniorNotesDueTwoThousandTwentyFiveMember_e77f8530-cb8e-460f-af38-6c9107d3f914" xlink:href="eri-20200630.xsd#eri_SixPercentSeniorNotesDueTwoThousandTwentyFiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_2b638b73-6a69-48dc-9bee-65b8f47ba338" xlink:to="loc_eri_SixPercentSeniorNotesDueTwoThousandTwentyFiveMember_e77f8530-cb8e-460f-af38-6c9107d3f914" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_8c1dd31b-59de-41a1-acbc-71dddee621d1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_2b638b73-6a69-48dc-9bee-65b8f47ba338" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_8c1dd31b-59de-41a1-acbc-71dddee621d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_619da2fe-df12-4ce9-9358-a50481de6187" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_287300dc-88c1-4ea7-aebe-152fad69f6fd" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_619da2fe-df12-4ce9-9358-a50481de6187" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_619da2fe-df12-4ce9-9358-a50481de6187_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_619da2fe-df12-4ce9-9358-a50481de6187" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_619da2fe-df12-4ce9-9358-a50481de6187_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_378d950c-941b-4d8e-b4ba-145ccb3eb319" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_619da2fe-df12-4ce9-9358-a50481de6187" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_378d950c-941b-4d8e-b4ba-145ccb3eb319" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_PresqueIsleDownsIncMember_af497580-123c-4e09-9bb8-231b81f6fe21" xlink:href="eri-20200630.xsd#eri_PresqueIsleDownsIncMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_378d950c-941b-4d8e-b4ba-145ccb3eb319" xlink:to="loc_eri_PresqueIsleDownsIncMember_af497580-123c-4e09-9bb8-231b81f6fe21" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_e0024ad1-43ad-4f0b-9d7d-4e29fd1a543a" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_287300dc-88c1-4ea7-aebe-152fad69f6fd" xlink:to="loc_srt_RangeAxis_e0024ad1-43ad-4f0b-9d7d-4e29fd1a543a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_e0024ad1-43ad-4f0b-9d7d-4e29fd1a543a_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_e0024ad1-43ad-4f0b-9d7d-4e29fd1a543a" xlink:to="loc_srt_RangeMember_e0024ad1-43ad-4f0b-9d7d-4e29fd1a543a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_a5c38eb3-d517-417d-8266-e017b4cc13d5" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_e0024ad1-43ad-4f0b-9d7d-4e29fd1a543a" xlink:to="loc_srt_RangeMember_a5c38eb3-d517-417d-8266-e017b4cc13d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_2795d021-59de-45b3-8a20-9af8b74daceb" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_a5c38eb3-d517-417d-8266-e017b4cc13d5" xlink:to="loc_srt_MinimumMember_2795d021-59de-45b3-8a20-9af8b74daceb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_d17db281-a921-42d1-af0d-4154de70edcb" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_a5c38eb3-d517-417d-8266-e017b4cc13d5" xlink:to="loc_srt_MaximumMember_d17db281-a921-42d1-af0d-4154de70edcb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_98cd5c67-616f-497c-83a0-505bb204e137" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_287300dc-88c1-4ea7-aebe-152fad69f6fd" xlink:to="loc_us-gaap_VariableRateAxis_98cd5c67-616f-497c-83a0-505bb204e137" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_98cd5c67-616f-497c-83a0-505bb204e137_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_98cd5c67-616f-497c-83a0-505bb204e137" xlink:to="loc_us-gaap_VariableRateDomain_98cd5c67-616f-497c-83a0-505bb204e137_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_6d5839e6-b139-4b57-98fd-6a24ca6b50a2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_98cd5c67-616f-497c-83a0-505bb204e137" xlink:to="loc_us-gaap_VariableRateDomain_6d5839e6-b139-4b57-98fd-6a24ca6b50a2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LondonInterbankOfferedRateLIBORMember_e54866d3-87c4-400f-b984-e7cbb26f82ae" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LondonInterbankOfferedRateLIBORMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_6d5839e6-b139-4b57-98fd-6a24ca6b50a2" xlink:to="loc_us-gaap_LondonInterbankOfferedRateLIBORMember_e54866d3-87c4-400f-b984-e7cbb26f82ae" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BaseRateMember_fb7fd8fc-1aeb-4f96-810a-b3fe5ededf72" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BaseRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_6d5839e6-b139-4b57-98fd-6a24ca6b50a2" xlink:to="loc_us-gaap_BaseRateMember_fb7fd8fc-1aeb-4f96-810a-b3fe5ededf72" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/LongTermDebtLumiereLoanAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#LongTermDebtLumiereLoanAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/LongTermDebtLumiereLoanAdditionalInformationDetails" xlink:type="extended" id="ic8d9cbd581914043adaf6c207b94f51e_LongTermDebtLumiereLoanAdditionalInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_83624603-6ada-405e-895e-e5026d029876" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayable_4d6fa0c9-575b-4bab-868d-b5d24e066c1b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NotesPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_83624603-6ada-405e-895e-e5026d029876" xlink:to="loc_us-gaap_NotesPayable_4d6fa0c9-575b-4bab-868d-b5d24e066c1b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_5f89b24b-7bbc-4539-b61d-54d93db920eb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateDuringPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_83624603-6ada-405e-895e-e5026d029876" xlink:to="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_5f89b24b-7bbc-4539-b61d-54d93db920eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_810febd4-9aa2-4934-b478-8b8558bd22f0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_83624603-6ada-405e-895e-e5026d029876" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_810febd4-9aa2-4934-b478-8b8558bd22f0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_79a7e1fb-6f3f-406f-a1dc-49bd9ce3c69e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_83624603-6ada-405e-895e-e5026d029876" xlink:to="loc_us-gaap_DebtInstrumentTable_79a7e1fb-6f3f-406f-a1dc-49bd9ce3c69e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_08ce9b2a-8495-47fc-bcd9-f8b8edd8b9b1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_79a7e1fb-6f3f-406f-a1dc-49bd9ce3c69e" xlink:to="loc_us-gaap_DebtInstrumentAxis_08ce9b2a-8495-47fc-bcd9-f8b8edd8b9b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_08ce9b2a-8495-47fc-bcd9-f8b8edd8b9b1_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_08ce9b2a-8495-47fc-bcd9-f8b8edd8b9b1" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_08ce9b2a-8495-47fc-bcd9-f8b8edd8b9b1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_1a3ca72e-5d9f-4920-915e-e97257f121f3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_08ce9b2a-8495-47fc-bcd9-f8b8edd8b9b1" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_1a3ca72e-5d9f-4920-915e-e97257f121f3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_LumiereLoanMember_f3e1379c-b4bb-4293-8515-c21b226808a6" xlink:href="eri-20200630.xsd#eri_LumiereLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_1a3ca72e-5d9f-4920-915e-e97257f121f3" xlink:to="loc_eri_LumiereLoanMember_f3e1379c-b4bb-4293-8515-c21b226808a6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SixPercentSeniorNotesDueTwoThousandTwentyFiveMember_7190a109-0b57-4d00-9a69-05e8d8ce8785" xlink:href="eri-20200630.xsd#eri_SixPercentSeniorNotesDueTwoThousandTwentyFiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_1a3ca72e-5d9f-4920-915e-e97257f121f3" xlink:to="loc_eri_SixPercentSeniorNotesDueTwoThousandTwentyFiveMember_7190a109-0b57-4d00-9a69-05e8d8ce8785" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_61978f7a-0dd2-4699-8a79-3e380845a3c2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_79a7e1fb-6f3f-406f-a1dc-49bd9ce3c69e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_61978f7a-0dd2-4699-8a79-3e380845a3c2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_61978f7a-0dd2-4699-8a79-3e380845a3c2_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_61978f7a-0dd2-4699-8a79-3e380845a3c2" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_61978f7a-0dd2-4699-8a79-3e380845a3c2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_c8941364-e995-413d-8d0e-75f81ec9377a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_61978f7a-0dd2-4699-8a79-3e380845a3c2" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_c8941364-e995-413d-8d0e-75f81ec9377a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_GamingAndLeisurePropertiesMember_e39ee656-6711-4647-a625-d63baa635c94" xlink:href="eri-20200630.xsd#eri_GamingAndLeisurePropertiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_c8941364-e995-413d-8d0e-75f81ec9377a" xlink:to="loc_eri_GamingAndLeisurePropertiesMember_e39ee656-6711-4647-a625-d63baa635c94" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_4cf1cb89-0500-4792-ad5c-8152d2548804" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_79a7e1fb-6f3f-406f-a1dc-49bd9ce3c69e" xlink:to="loc_srt_RangeAxis_4cf1cb89-0500-4792-ad5c-8152d2548804" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_4cf1cb89-0500-4792-ad5c-8152d2548804_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_4cf1cb89-0500-4792-ad5c-8152d2548804" xlink:to="loc_srt_RangeMember_4cf1cb89-0500-4792-ad5c-8152d2548804_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_2efe6d49-02ee-429c-9ffd-462faad59990" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_4cf1cb89-0500-4792-ad5c-8152d2548804" xlink:to="loc_srt_RangeMember_2efe6d49-02ee-429c-9ffd-462faad59990" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_34f9e5d4-203c-4111-b012-fbf51fae7b9a" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_2efe6d49-02ee-429c-9ffd-462faad59990" xlink:to="loc_srt_MinimumMember_34f9e5d4-203c-4111-b012-fbf51fae7b9a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_c02f928a-db00-49dd-916b-b2e97897e3be" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_2efe6d49-02ee-429c-9ffd-462faad59990" xlink:to="loc_srt_MaximumMember_c02f928a-db00-49dd-916b-b2e97897e3be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_489697f1-1de6-482e-a24c-5e38677d1344" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_StatementScenarioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_79a7e1fb-6f3f-406f-a1dc-49bd9ce3c69e" xlink:to="loc_srt_StatementScenarioAxis_489697f1-1de6-482e-a24c-5e38677d1344" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_489697f1-1de6-482e-a24c-5e38677d1344_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_489697f1-1de6-482e-a24c-5e38677d1344" xlink:to="loc_srt_ScenarioUnspecifiedDomain_489697f1-1de6-482e-a24c-5e38677d1344_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_975c4577-1133-4ab3-a60b-eafcdf76fd16" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_489697f1-1de6-482e-a24c-5e38677d1344" xlink:to="loc_srt_ScenarioUnspecifiedDomain_975c4577-1133-4ab3-a60b-eafcdf76fd16" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_905c147f-7d16-489d-baab-d55a3d34a323" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScenarioForecastMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_975c4577-1133-4ab3-a60b-eafcdf76fd16" xlink:to="loc_srt_ScenarioForecastMember_905c147f-7d16-489d-baab-d55a3d34a323" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/FairValueMeasurements" xlink:type="simple" xlink:href="eri-20200630.xsd#FairValueMeasurements"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/FairValueMeasurements" xlink:type="extended" id="i61f77e7792364ec9bc4c19956c7dc8c1_FairValueMeasurements"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/FairValueMeasurementsTables" xlink:type="simple" xlink:href="eri-20200630.xsd#FairValueMeasurementsTables"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/FairValueMeasurementsTables" xlink:type="extended" id="i3519df98956f4dee973502d1d46b55a3_FairValueMeasurementsTables"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/FairValueMeasurementsScheduleofAssetsMeasuredatFairValueonaRecurringBasisDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#FairValueMeasurementsScheduleofAssetsMeasuredatFairValueonaRecurringBasisDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/FairValueMeasurementsScheduleofAssetsMeasuredatFairValueonaRecurringBasisDetails" xlink:type="extended" id="i80c99b7c7d8d4240b171bc0028348b93_FairValueMeasurementsScheduleofAssetsMeasuredatFairValueonaRecurringBasisDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ff9cfaa3-7152-441f-bffe-872277910753" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_ddbad2d7-8439-4fc4-8dbc-3e9961aee85a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsFairValueDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ff9cfaa3-7152-441f-bffe-872277910753" xlink:to="loc_us-gaap_AssetsFairValueDisclosureAbstract_ddbad2d7-8439-4fc4-8dbc-3e9961aee85a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndInvestments_aa4197e0-e8f9-4818-91d7-1419ce0cf404" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestrictedCashAndInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_ddbad2d7-8439-4fc4-8dbc-3e9961aee85a" xlink:to="loc_us-gaap_RestrictedCashAndInvestments_aa4197e0-e8f9-4818-91d7-1419ce0cf404" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecuritiesCurrent_eea9018c-f97c-4fc5-9e88-ecb39f6d3290" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MarketableSecuritiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_ddbad2d7-8439-4fc4-8dbc-3e9961aee85a" xlink:to="loc_us-gaap_MarketableSecuritiesCurrent_eea9018c-f97c-4fc5-9e88-ecb39f6d3290" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_be74c1c4-b4f1-4c77-a81c-800dbc903676" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesFairValueDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ff9cfaa3-7152-441f-bffe-872277910753" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_be74c1c4-b4f1-4c77-a81c-800dbc903676" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_OtherLiabilitiesRelatedToRestrictedInvestments_c72e86cb-14d1-483b-adf9-aefaa7f2fda9" xlink:href="eri-20200630.xsd#eri_OtherLiabilitiesRelatedToRestrictedInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_be74c1c4-b4f1-4c77-a81c-800dbc903676" xlink:to="loc_eri_OtherLiabilitiesRelatedToRestrictedInvestments_c72e86cb-14d1-483b-adf9-aefaa7f2fda9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_1f9dc522-17ef-4bbf-abe5-b0249b5d85ef" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ff9cfaa3-7152-441f-bffe-872277910753" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_1f9dc522-17ef-4bbf-abe5-b0249b5d85ef" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_48720288-8fab-4caf-9208-1e1a7e25320c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_1f9dc522-17ef-4bbf-abe5-b0249b5d85ef" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_48720288-8fab-4caf-9208-1e1a7e25320c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_48720288-8fab-4caf-9208-1e1a7e25320c_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_48720288-8fab-4caf-9208-1e1a7e25320c" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_48720288-8fab-4caf-9208-1e1a7e25320c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_8c33704e-1737-43fa-b82f-a1087f88e637" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_48720288-8fab-4caf-9208-1e1a7e25320c" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_8c33704e-1737-43fa-b82f-a1087f88e637" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_afa0f8cb-5c2a-4dd2-b0da-c6357f03df3c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_8c33704e-1737-43fa-b82f-a1087f88e637" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_afa0f8cb-5c2a-4dd2-b0da-c6357f03df3c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_b6909775-c4ba-472c-8d17-d59e6124fa2d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_1f9dc522-17ef-4bbf-abe5-b0249b5d85ef" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_b6909775-c4ba-472c-8d17-d59e6124fa2d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_b6909775-c4ba-472c-8d17-d59e6124fa2d_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_b6909775-c4ba-472c-8d17-d59e6124fa2d" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_b6909775-c4ba-472c-8d17-d59e6124fa2d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d0273908-ba79-4761-8bc5-7ed8e5f96045" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_b6909775-c4ba-472c-8d17-d59e6124fa2d" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d0273908-ba79-4761-8bc5-7ed8e5f96045" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_5bad2290-22ea-4da5-973e-bf401c6719d2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d0273908-ba79-4761-8bc5-7ed8e5f96045" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_5bad2290-22ea-4da5-973e-bf401c6719d2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_36114a0a-e479-432d-907e-6abb082ba709" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d0273908-ba79-4761-8bc5-7ed8e5f96045" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_36114a0a-e479-432d-907e-6abb082ba709" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_6d1d6b68-77c3-4f24-be5f-c40cbb1dd96b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d0273908-ba79-4761-8bc5-7ed8e5f96045" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_6d1d6b68-77c3-4f24-be5f-c40cbb1dd96b" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/FairValueMeasurementsScheduleofChangeinRestrictedInvestmentsValuedUsingLevel3InputsDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#FairValueMeasurementsScheduleofChangeinRestrictedInvestmentsValuedUsingLevel3InputsDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/FairValueMeasurementsScheduleofChangeinRestrictedInvestmentsValuedUsingLevel3InputsDetails" xlink:type="extended" id="ie2b58256b8e14ada8d81845c15d1e6a4_FairValueMeasurementsScheduleofChangeinRestrictedInvestmentsValuedUsingLevel3InputsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_c446c1d7-e4e1-48f6-ab8b-d2a43a754a3c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_e51fdd74-a36f-4cf0-938e-51b6f5699636" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_c446c1d7-e4e1-48f6-ab8b-d2a43a754a3c" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_e51fdd74-a36f-4cf0-938e-51b6f5699636" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndInvestments_65467c8d-0b7e-45d0-bd08-1b074da4cb8d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestrictedCashAndInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_e51fdd74-a36f-4cf0-938e-51b6f5699636" xlink:to="loc_us-gaap_RestrictedCashAndInvestments_65467c8d-0b7e-45d0-bd08-1b074da4cb8d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_OtherLiabilitiesRelatedToRestrictedInvestments_e369d8dd-212d-41b0-90e9-9871e52fe1a2" xlink:href="eri-20200630.xsd#eri_OtherLiabilitiesRelatedToRestrictedInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_e51fdd74-a36f-4cf0-938e-51b6f5699636" xlink:to="loc_eri_OtherLiabilitiesRelatedToRestrictedInvestments_e369d8dd-212d-41b0-90e9-9871e52fe1a2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_86438702-0bec-4ffd-9651-b7068582af98" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_e51fdd74-a36f-4cf0-938e-51b6f5699636" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_86438702-0bec-4ffd-9651-b7068582af98" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_ca58b5f5-987d-48bd-b3b2-2551efcdaadb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_e51fdd74-a36f-4cf0-938e-51b6f5699636" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_ca58b5f5-987d-48bd-b3b2-2551efcdaadb" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_OtherLiabilitiesRelatedToRestrictedInvestments_2c9867f7-f39f-43b3-a02d-9af5f414db52" xlink:href="eri-20200630.xsd#eri_OtherLiabilitiesRelatedToRestrictedInvestments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndInvestments_512c7c7a-ab10-44c1-9230-fa0a78cb71d2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestrictedCashAndInvestments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_16c7e411-7f93-480c-90a4-335296cf613c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_c446c1d7-e4e1-48f6-ab8b-d2a43a754a3c" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_16c7e411-7f93-480c-90a4-335296cf613c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByAssetClassAxis_add20a43-dc4e-48a7-a684-80187daedd4d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByAssetClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_16c7e411-7f93-480c-90a4-335296cf613c" xlink:to="loc_us-gaap_FairValueByAssetClassAxis_add20a43-dc4e-48a7-a684-80187daedd4d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_add20a43-dc4e-48a7-a684-80187daedd4d_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_add20a43-dc4e-48a7-a684-80187daedd4d" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_add20a43-dc4e-48a7-a684-80187daedd4d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_a3af87c0-f3ca-4b85-a81d-b74c9f7651a7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_add20a43-dc4e-48a7-a684-80187daedd4d" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_a3af87c0-f3ca-4b85-a81d-b74c9f7651a7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_RestrictedCashAndInvestmentsMember_00d9e0c0-6555-4ad4-9abd-319ecd7c30e0" xlink:href="eri-20200630.xsd#eri_RestrictedCashAndInvestmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_a3af87c0-f3ca-4b85-a81d-b74c9f7651a7" xlink:to="loc_eri_RestrictedCashAndInvestmentsMember_00d9e0c0-6555-4ad4-9abd-319ecd7c30e0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByLiabilityClassAxis_893a3c3c-fc6a-444e-9449-56b5cdaa5d7e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByLiabilityClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_16c7e411-7f93-480c-90a4-335296cf613c" xlink:to="loc_us-gaap_FairValueByLiabilityClassAxis_893a3c3c-fc6a-444e-9449-56b5cdaa5d7e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_893a3c3c-fc6a-444e-9449-56b5cdaa5d7e_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_893a3c3c-fc6a-444e-9449-56b5cdaa5d7e" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_893a3c3c-fc6a-444e-9449-56b5cdaa5d7e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_99c4b0bc-e972-4335-95d2-72a95ce24df6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_893a3c3c-fc6a-444e-9449-56b5cdaa5d7e" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_99c4b0bc-e972-4335-95d2-72a95ce24df6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesMember_05f57171-8b2f-4554-b1ca-72f17b64a6d8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_99c4b0bc-e972-4335-95d2-72a95ce24df6" xlink:to="loc_us-gaap_OtherLiabilitiesMember_05f57171-8b2f-4554-b1ca-72f17b64a6d8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_6871f6e2-1c60-4ca6-a5c1-b2768a087eb3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_16c7e411-7f93-480c-90a4-335296cf613c" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_6871f6e2-1c60-4ca6-a5c1-b2768a087eb3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_6871f6e2-1c60-4ca6-a5c1-b2768a087eb3_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_6871f6e2-1c60-4ca6-a5c1-b2768a087eb3" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_6871f6e2-1c60-4ca6-a5c1-b2768a087eb3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_a2c8e3a9-1e44-43fc-a83c-202e3918b7f1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_6871f6e2-1c60-4ca6-a5c1-b2768a087eb3" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_a2c8e3a9-1e44-43fc-a83c-202e3918b7f1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_66c6250f-9b2d-435c-b6ba-08f2a1947f2e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_a2c8e3a9-1e44-43fc-a83c-202e3918b7f1" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_66c6250f-9b2d-435c-b6ba-08f2a1947f2e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_57563bd8-9acd-4839-a018-fb6acf1b8f00" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_16c7e411-7f93-480c-90a4-335296cf613c" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_57563bd8-9acd-4839-a018-fb6acf1b8f00" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_57563bd8-9acd-4839-a018-fb6acf1b8f00_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_57563bd8-9acd-4839-a018-fb6acf1b8f00" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_57563bd8-9acd-4839-a018-fb6acf1b8f00_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_a893bab8-31b2-4d58-b045-c02d1387f98b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_57563bd8-9acd-4839-a018-fb6acf1b8f00" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_a893bab8-31b2-4d58-b045-c02d1387f98b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_8a7ee88b-1351-4f87-9562-4272823e2c35" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_a893bab8-31b2-4d58-b045-c02d1387f98b" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_8a7ee88b-1351-4f87-9562-4272823e2c35" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/FairValueMeasurementsAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#FairValueMeasurementsAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/FairValueMeasurementsAdditionalInformationDetails" xlink:type="extended" id="i0a9b4901a6e34fa9aac939e61fbee489_FairValueMeasurementsAdditionalInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_97fa2c65-1eac-4b63-bf82-e950d93f033e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsLevel1ToLevel2TransfersAmount_452578c5-c541-435d-a0d0-0d0c5819661a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsLevel1ToLevel2TransfersAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_97fa2c65-1eac-4b63-bf82-e950d93f033e" xlink:to="loc_us-gaap_FairValueAssetsLevel1ToLevel2TransfersAmount_452578c5-c541-435d-a0d0-0d0c5819661a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsLevel2ToLevel1TransfersAmount_f4eb8c90-3070-42a1-909b-5ff8d5e6368d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsLevel2ToLevel1TransfersAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_97fa2c65-1eac-4b63-bf82-e950d93f033e" xlink:to="loc_us-gaap_FairValueAssetsLevel2ToLevel1TransfersAmount_f4eb8c90-3070-42a1-909b-5ff8d5e6368d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_FairValueAssetsLevel1ToLevel3TransfersAmount_60f0192d-142b-4064-b486-956bb885c0a5" xlink:href="eri-20200630.xsd#eri_FairValueAssetsLevel1ToLevel3TransfersAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_97fa2c65-1eac-4b63-bf82-e950d93f033e" xlink:to="loc_eri_FairValueAssetsLevel1ToLevel3TransfersAmount_60f0192d-142b-4064-b486-956bb885c0a5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_FairValueAssetsLevel2ToLevel3TransfersAmount_b2b87d96-5ebe-4fcd-820b-83e1eab28ea2" xlink:href="eri-20200630.xsd#eri_FairValueAssetsLevel2ToLevel3TransfersAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_97fa2c65-1eac-4b63-bf82-e950d93f033e" xlink:to="loc_eri_FairValueAssetsLevel2ToLevel3TransfersAmount_b2b87d96-5ebe-4fcd-820b-83e1eab28ea2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_FairValueAssetsLevel3ToLevel2TransfersAmount_427376ac-5fd7-4b42-a88b-9b022f71b040" xlink:href="eri-20200630.xsd#eri_FairValueAssetsLevel3ToLevel2TransfersAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_97fa2c65-1eac-4b63-bf82-e950d93f033e" xlink:to="loc_eri_FairValueAssetsLevel3ToLevel2TransfersAmount_427376ac-5fd7-4b42-a88b-9b022f71b040" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_FairValueAssetsLevel3ToLevel1TransfersAmount_f91528b0-a489-412d-a577-2b1ccf8f70b8" xlink:href="eri-20200630.xsd#eri_FairValueAssetsLevel3ToLevel1TransfersAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_97fa2c65-1eac-4b63-bf82-e950d93f033e" xlink:to="loc_eri_FairValueAssetsLevel3ToLevel1TransfersAmount_f91528b0-a489-412d-a577-2b1ccf8f70b8" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_AgreementPeriod_86872078-13ba-4ff0-8b7a-ba939b1a7719" xlink:href="eri-20200630.xsd#eri_AgreementPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_97fa2c65-1eac-4b63-bf82-e950d93f033e" xlink:to="loc_eri_AgreementPeriod_86872078-13ba-4ff0-8b7a-ba939b1a7719" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_NumberOfCommonSharesReceivedUnderAgreement_b18dda35-5c31-4c1b-8b1e-80066e6048f8" xlink:href="eri-20200630.xsd#eri_NumberOfCommonSharesReceivedUnderAgreement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_97fa2c65-1eac-4b63-bf82-e950d93f033e" xlink:to="loc_eri_NumberOfCommonSharesReceivedUnderAgreement_b18dda35-5c31-4c1b-8b1e-80066e6048f8" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_AdditionalValueOfCommonSharesReceivableUnderAgreementUponExerciseOfFirstOptionByParty_68053a86-1efa-4c45-ab96-c82656fb2768" xlink:href="eri-20200630.xsd#eri_AdditionalValueOfCommonSharesReceivableUnderAgreementUponExerciseOfFirstOptionByParty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_97fa2c65-1eac-4b63-bf82-e950d93f033e" xlink:to="loc_eri_AdditionalValueOfCommonSharesReceivableUnderAgreementUponExerciseOfFirstOptionByParty_68053a86-1efa-4c45-ab96-c82656fb2768" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CommonStockSalesRestrictionPeriodUponExerciseOfFirstOption_8abf19b6-ca4a-4c75-bbd4-ab9d5be33f24" xlink:href="eri-20200630.xsd#eri_CommonStockSalesRestrictionPeriodUponExerciseOfFirstOption"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_97fa2c65-1eac-4b63-bf82-e950d93f033e" xlink:to="loc_eri_CommonStockSalesRestrictionPeriodUponExerciseOfFirstOption_8abf19b6-ca4a-4c75-bbd4-ab9d5be33f24" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNi_ce8fd2ba-0c60-41d2-8bc2-63eb52e0f33d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquitySecuritiesFvNi"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_97fa2c65-1eac-4b63-bf82-e950d93f033e" xlink:to="loc_us-gaap_EquitySecuritiesFvNi_ce8fd2ba-0c60-41d2-8bc2-63eb52e0f33d" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_1c7912ca-0272-4654-b631-504840577737" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_97fa2c65-1eac-4b63-bf82-e950d93f033e" xlink:to="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_1c7912ca-0272-4654-b631-504840577737" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_4ae7b722-a332-485d-87e6-cf6f38564791" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_97fa2c65-1eac-4b63-bf82-e950d93f033e" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_4ae7b722-a332-485d-87e6-cf6f38564791" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_9abd2d70-9669-46dc-8c47-d520f8b531c0" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_4ae7b722-a332-485d-87e6-cf6f38564791" xlink:to="loc_srt_CounterpartyNameAxis_9abd2d70-9669-46dc-8c47-d520f8b531c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_9abd2d70-9669-46dc-8c47-d520f8b531c0_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_9abd2d70-9669-46dc-8c47-d520f8b531c0" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_9abd2d70-9669-46dc-8c47-d520f8b531c0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_cb8fb2a4-092b-4974-afed-491be1291a58" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_9abd2d70-9669-46dc-8c47-d520f8b531c0" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_cb8fb2a4-092b-4974-afed-491be1291a58" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_TheStarsGroupIncorporationMember_5ac49e7c-f099-4272-a7cf-ee007f9a4052" xlink:href="eri-20200630.xsd#eri_TheStarsGroupIncorporationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_cb8fb2a4-092b-4974-afed-491be1291a58" xlink:to="loc_eri_TheStarsGroupIncorporationMember_5ac49e7c-f099-4272-a7cf-ee007f9a4052" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_79711f46-97e8-453e-80b1-b2e506694dcf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_4ae7b722-a332-485d-87e6-cf6f38564791" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_79711f46-97e8-453e-80b1-b2e506694dcf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_79711f46-97e8-453e-80b1-b2e506694dcf_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_79711f46-97e8-453e-80b1-b2e506694dcf" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_79711f46-97e8-453e-80b1-b2e506694dcf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_3fee9eaf-b0f5-42f9-8569-31ad5ff4abf2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_79711f46-97e8-453e-80b1-b2e506694dcf" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_3fee9eaf-b0f5-42f9-8569-31ad5ff4abf2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MarketableSecuritiesMember_cbaa1397-bb67-41cc-81ee-fa9da415404e" xlink:href="eri-20200630.xsd#eri_MarketableSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_3fee9eaf-b0f5-42f9-8569-31ad5ff4abf2" xlink:to="loc_eri_MarketableSecuritiesMember_cbaa1397-bb67-41cc-81ee-fa9da415404e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_RestrictedCashAndInvestmentsMember_7c23ac84-aaa3-4393-abd7-1335fec827b0" xlink:href="eri-20200630.xsd#eri_RestrictedCashAndInvestmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_3fee9eaf-b0f5-42f9-8569-31ad5ff4abf2" xlink:to="loc_eri_RestrictedCashAndInvestmentsMember_7c23ac84-aaa3-4393-abd7-1335fec827b0" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/FairValueMeasurementsSummaryofEstimatedFairValueofFinancialInstrumentsDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#FairValueMeasurementsSummaryofEstimatedFairValueofFinancialInstrumentsDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/FairValueMeasurementsSummaryofEstimatedFairValueofFinancialInstrumentsDetails" xlink:type="extended" id="i7889ea092c224cd198e2ae0647aa7cd9_FairValueMeasurementsSummaryofEstimatedFairValueofFinancialInstrumentsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_0a622c91-fefe-4678-bb8b-69ff4c6f9e3b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_d9dedd2e-7aab-4f26-98c5-b9603e84ab94" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_0a622c91-fefe-4678-bb8b-69ff4c6f9e3b" xlink:to="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_d9dedd2e-7aab-4f26-98c5-b9603e84ab94" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_f32bfb74-9427-484a-abcc-7b5a41a5186b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_d9dedd2e-7aab-4f26-98c5-b9603e84ab94" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_f32bfb74-9427-484a-abcc-7b5a41a5186b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_af3c443f-9c0d-41d3-9965-633fabafd1b3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_d9dedd2e-7aab-4f26-98c5-b9603e84ab94" xlink:to="loc_us-gaap_LongTermDebtFairValue_af3c443f-9c0d-41d3-9965-633fabafd1b3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_aa79b1ac-87a8-445b-b807-89f7e40d4a4c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_0a622c91-fefe-4678-bb8b-69ff4c6f9e3b" xlink:to="loc_us-gaap_LongTermDebt_aa79b1ac-87a8-445b-b807-89f7e40d4a4c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_c8c5097e-7c81-4418-bcf3-6bfcd0bea465" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_0a622c91-fefe-4678-bb8b-69ff4c6f9e3b" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_c8c5097e-7c81-4418-bcf3-6bfcd0bea465" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_893e2d19-b59a-4db1-80e9-d51d2a2e8c20" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_c8c5097e-7c81-4418-bcf3-6bfcd0bea465" xlink:to="loc_us-gaap_DebtInstrumentAxis_893e2d19-b59a-4db1-80e9-d51d2a2e8c20" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_893e2d19-b59a-4db1-80e9-d51d2a2e8c20_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_893e2d19-b59a-4db1-80e9-d51d2a2e8c20" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_893e2d19-b59a-4db1-80e9-d51d2a2e8c20_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_8ab5515a-dc95-4786-b090-1fde185a5d3e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_893e2d19-b59a-4db1-80e9-d51d2a2e8c20" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_8ab5515a-dc95-4786-b090-1fde185a5d3e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SevenPercentSeniorNotesDueTwoThousandTwentyThreeMember_c8ea83f1-941f-4524-98b5-7b16da59f8a4" xlink:href="eri-20200630.xsd#eri_SevenPercentSeniorNotesDueTwoThousandTwentyThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_8ab5515a-dc95-4786-b090-1fde185a5d3e" xlink:to="loc_eri_SevenPercentSeniorNotesDueTwoThousandTwentyThreeMember_c8ea83f1-941f-4524-98b5-7b16da59f8a4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SixPercentSeniorNotesDueTwoThousandTwentyFiveMember_52d5f5c1-da2c-4ebd-a431-fb7d7960346f" xlink:href="eri-20200630.xsd#eri_SixPercentSeniorNotesDueTwoThousandTwentyFiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_8ab5515a-dc95-4786-b090-1fde185a5d3e" xlink:to="loc_eri_SixPercentSeniorNotesDueTwoThousandTwentyFiveMember_52d5f5c1-da2c-4ebd-a431-fb7d7960346f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SixPercentSeniorNotesDueTwoThousandTwentySixMember_0c3815c1-f6ea-45d4-981b-1aca2c09c541" xlink:href="eri-20200630.xsd#eri_SixPercentSeniorNotesDueTwoThousandTwentySixMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_8ab5515a-dc95-4786-b090-1fde185a5d3e" xlink:to="loc_eri_SixPercentSeniorNotesDueTwoThousandTwentySixMember_0c3815c1-f6ea-45d4-981b-1aca2c09c541" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_TermLoanUnderSecuredCreditFacilityMember_dbed5deb-ae75-4ac6-ba65-70ea7c1d2930" xlink:href="eri-20200630.xsd#eri_TermLoanUnderSecuredCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_8ab5515a-dc95-4786-b090-1fde185a5d3e" xlink:to="loc_eri_TermLoanUnderSecuredCreditFacilityMember_dbed5deb-ae75-4ac6-ba65-70ea7c1d2930" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_8d29049a-bd0a-475c-9621-52b32b05811d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_8ab5515a-dc95-4786-b090-1fde185a5d3e" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_8d29049a-bd0a-475c-9621-52b32b05811d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_LumiereLoanMember_78b2bd12-4aa0-4964-aec1-fa2a7209a274" xlink:href="eri-20200630.xsd#eri_LumiereLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_8ab5515a-dc95-4786-b090-1fde185a5d3e" xlink:to="loc_eri_LumiereLoanMember_78b2bd12-4aa0-4964-aec1-fa2a7209a274" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_OtherLongTermDebtMember_26a79168-ae96-4a52-9181-45ee96498fab" xlink:href="eri-20200630.xsd#eri_OtherLongTermDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_8ab5515a-dc95-4786-b090-1fde185a5d3e" xlink:to="loc_eri_OtherLongTermDebtMember_26a79168-ae96-4a52-9181-45ee96498fab" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes7Due2023Member_d73b3128-1e1e-42f7-a13b-d1ee4dc4e2e4" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes7Due2023Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_8ab5515a-dc95-4786-b090-1fde185a5d3e" xlink:to="loc_eri_SeniorSecuredNotes7Due2023Member_d73b3128-1e1e-42f7-a13b-d1ee4dc4e2e4" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes6Due2025Member_4a211d87-3d13-491d-b10c-6dad901296ac" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes6Due2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_8ab5515a-dc95-4786-b090-1fde185a5d3e" xlink:to="loc_eri_SeniorSecuredNotes6Due2025Member_4a211d87-3d13-491d-b10c-6dad901296ac" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SeniorSecuredNotes6Due2026Member_051679f2-eb67-42d6-8315-3360c3818f86" xlink:href="eri-20200630.xsd#eri_SeniorSecuredNotes6Due2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_8ab5515a-dc95-4786-b090-1fde185a5d3e" xlink:to="loc_eri_SeniorSecuredNotes6Due2026Member_051679f2-eb67-42d6-8315-3360c3818f86" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_29d2de09-6af8-437e-9e80-17f37f62bb13" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_c8c5097e-7c81-4418-bcf3-6bfcd0bea465" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_29d2de09-6af8-437e-9e80-17f37f62bb13" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_29d2de09-6af8-437e-9e80-17f37f62bb13_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_29d2de09-6af8-437e-9e80-17f37f62bb13" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_29d2de09-6af8-437e-9e80-17f37f62bb13_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_f708fd33-e55d-46e4-b366-c73e3d577bc9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_29d2de09-6af8-437e-9e80-17f37f62bb13" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_f708fd33-e55d-46e4-b366-c73e3d577bc9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_8ce77b8e-a98a-46ce-abf2-1b8096f0665a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_f708fd33-e55d-46e4-b366-c73e3d577bc9" xlink:to="loc_us-gaap_SeniorNotesMember_8ce77b8e-a98a-46ce-abf2-1b8096f0665a" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/EarningsperShare" xlink:type="simple" xlink:href="eri-20200630.xsd#EarningsperShare"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/EarningsperShare" xlink:type="extended" id="id8fae66cb7e14670bf339580c3dcf63b_EarningsperShare"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/EarningsperShareTables" xlink:type="simple" xlink:href="eri-20200630.xsd#EarningsperShareTables"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/EarningsperShareTables" xlink:type="extended" id="i6728062db32e4da7a0ac60f7ce499fdf_EarningsperShareTables"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/EarningsperShareScheduleofReconciliationoftheNumeratorsandDenominatorsoftheBasicandDilutedNetIncomePerShareComputationsDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#EarningsperShareScheduleofReconciliationoftheNumeratorsandDenominatorsoftheBasicandDilutedNetIncomePerShareComputationsDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/EarningsperShareScheduleofReconciliationoftheNumeratorsandDenominatorsoftheBasicandDilutedNetIncomePerShareComputationsDetails" xlink:type="extended" id="ib3e26c7c4a404afcb31f7cd9e2f2e76c_EarningsperShareScheduleofReconciliationoftheNumeratorsandDenominatorsoftheBasicandDilutedNetIncomePerShareComputationsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_c63a7534-15b0-4000-885a-495ba22299a2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_5e48c3ab-62b4-444a-8ffb-9452b3661214" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c63a7534-15b0-4000-885a-495ba22299a2" xlink:to="loc_us-gaap_NetIncomeLoss_5e48c3ab-62b4-444a-8ffb-9452b3661214" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_824c3c3f-8b72-48f0-ae43-e50fefa2c1a8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c63a7534-15b0-4000-885a-495ba22299a2" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_824c3c3f-8b72-48f0-ae43-e50fefa2c1a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_48c3aca5-a44b-46f5-8f58-1fe75dac13c4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_824c3c3f-8b72-48f0-ae43-e50fefa2c1a8" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_48c3aca5-a44b-46f5-8f58-1fe75dac13c4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_46e2c2cd-2363-4c23-ae0a-f34f0e540d3a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_824c3c3f-8b72-48f0-ae43-e50fefa2c1a8" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_46e2c2cd-2363-4c23-ae0a-f34f0e540d3a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_e6ba4b31-d505-4509-bc78-e9b979c29763" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_824c3c3f-8b72-48f0-ae43-e50fefa2c1a8" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_e6ba4b31-d505-4509-bc78-e9b979c29763" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_24a54e38-d964-4e00-988b-4bd8ba04d69c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c63a7534-15b0-4000-885a-495ba22299a2" xlink:to="loc_us-gaap_EarningsPerShareBasic_24a54e38-d964-4e00-988b-4bd8ba04d69c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_85f8db68-5056-40d3-9517-68207d234d73" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c63a7534-15b0-4000-885a-495ba22299a2" xlink:to="loc_us-gaap_EarningsPerShareDiluted_85f8db68-5056-40d3-9517-68207d234d73" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_7a658450-4a93-4033-aca8-0406f740525b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_c63a7534-15b0-4000-885a-495ba22299a2" xlink:to="loc_us-gaap_StatementTable_7a658450-4a93-4033-aca8-0406f740525b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_f355382e-3128-405f-be1b-aad1a88efe58" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_7a658450-4a93-4033-aca8-0406f740525b" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_f355382e-3128-405f-be1b-aad1a88efe58" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_f355382e-3128-405f-be1b-aad1a88efe58_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_f355382e-3128-405f-be1b-aad1a88efe58" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_f355382e-3128-405f-be1b-aad1a88efe58_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_6f8308ff-8554-4fcd-affd-a3a2f0ac0674" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_f355382e-3128-405f-be1b-aad1a88efe58" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_6f8308ff-8554-4fcd-affd-a3a2f0ac0674" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_5766a130-5009-469d-8f61-9bde45f765ae" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_6f8308ff-8554-4fcd-affd-a3a2f0ac0674" xlink:to="loc_us-gaap_EmployeeStockOptionMember_5766a130-5009-469d-8f61-9bde45f765ae" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_72422c38-e94e-48d1-b46e-31ee0964aa7a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_6f8308ff-8554-4fcd-affd-a3a2f0ac0674" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_72422c38-e94e-48d1-b46e-31ee0964aa7a" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/EarningsperShareAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#EarningsperShareAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/EarningsperShareAdditionalInformationDetails" xlink:type="extended" id="ifd4d73e1ef554f30a42fd0c5debf7321_EarningsperShareAdditionalInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_eri_EarningsPerShareBasicAndDilutedLineItems_2ffd202d-3ada-4c5f-83cf-c98623546a78" xlink:href="eri-20200630.xsd#eri_EarningsPerShareBasicAndDilutedLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_ffbec1d8-f445-4d15-a3eb-cb0b071b6d76" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_EarningsPerShareBasicAndDilutedLineItems_2ffd202d-3ada-4c5f-83cf-c98623546a78" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_ffbec1d8-f445-4d15-a3eb-cb0b071b6d76" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_EarningsPerShareBasicAndDilutedTable_441f9c57-c18d-4ef6-9c65-97f985e18036" xlink:href="eri-20200630.xsd#eri_EarningsPerShareBasicAndDilutedTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_eri_EarningsPerShareBasicAndDilutedLineItems_2ffd202d-3ada-4c5f-83cf-c98623546a78" xlink:to="loc_eri_EarningsPerShareBasicAndDilutedTable_441f9c57-c18d-4ef6-9c65-97f985e18036" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_a19993e5-95ad-4d0f-885e-3d942098d780" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_eri_EarningsPerShareBasicAndDilutedTable_441f9c57-c18d-4ef6-9c65-97f985e18036" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_a19993e5-95ad-4d0f-885e-3d942098d780" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_a19993e5-95ad-4d0f-885e-3d942098d780_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_a19993e5-95ad-4d0f-885e-3d942098d780" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_a19993e5-95ad-4d0f-885e-3d942098d780_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_0560e477-f120-4a22-a453-594c9ceafe91" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_a19993e5-95ad-4d0f-885e-3d942098d780" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_0560e477-f120-4a22-a453-594c9ceafe91" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_0217749e-9e88-4513-a043-ab3cf54ff58b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_0560e477-f120-4a22-a453-594c9ceafe91" xlink:to="loc_us-gaap_EmployeeStockOptionMember_0217749e-9e88-4513-a043-ab3cf54ff58b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_dc54f9fe-8ca2-47db-8081-9d3b3773400d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_0560e477-f120-4a22-a453-594c9ceafe91" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_dc54f9fe-8ca2-47db-8081-9d3b3773400d" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/CommitmentsandContingencies" xlink:type="simple" xlink:href="eri-20200630.xsd#CommitmentsandContingencies"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/CommitmentsandContingencies" xlink:type="extended" id="idaca65a0d03b4c16a441c58051afd447_CommitmentsandContingencies"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/RelatedAffiliates" xlink:type="simple" xlink:href="eri-20200630.xsd#RelatedAffiliates"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/RelatedAffiliates" xlink:type="extended" id="ifad8b53ff8d54b489e07d187b5cbd8a9_RelatedAffiliates"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/RelatedAffiliatesAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#RelatedAffiliatesAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/RelatedAffiliatesAdditionalInformationDetails" xlink:type="extended" id="i96326f8e8bd9421c8d43b30000dcd26c_RelatedAffiliatesAdditionalInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_5a3955b5-424f-4b10-9aa7-1a1568aedb89" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_d2fcb59d-90f4-4c2b-96b2-6e474bd7ea60" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_5a3955b5-424f-4b10-9aa7-1a1568aedb89" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_d2fcb59d-90f4-4c2b-96b2-6e474bd7ea60" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_f0857f84-bda6-4718-81ca-d03852733c6f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionAmountsOfTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_5a3955b5-424f-4b10-9aa7-1a1568aedb89" xlink:to="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_f0857f84-bda6-4718-81ca-d03852733c6f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AreaOfRealEstateProperty_ca98f222-8ecb-4b38-b180-28e834533d19" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AreaOfRealEstateProperty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_5a3955b5-424f-4b10-9aa7-1a1568aedb89" xlink:to="loc_us-gaap_AreaOfRealEstateProperty_ca98f222-8ecb-4b38-b180-28e834533d19" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_AnnualRentPayable_ac3e2cb6-cc0b-4f34-b117-50c4f6e54fea" xlink:href="eri-20200630.xsd#eri_AnnualRentPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_5a3955b5-424f-4b10-9aa7-1a1568aedb89" xlink:to="loc_eri_AnnualRentPayable_ac3e2cb6-cc0b-4f34-b117-50c4f6e54fea" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DueToRelatedPartiesCurrentAndNoncurrent_d68f0290-585c-49be-ad14-d3053d2033b9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DueToRelatedPartiesCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_5a3955b5-424f-4b10-9aa7-1a1568aedb89" xlink:to="loc_us-gaap_DueToRelatedPartiesCurrentAndNoncurrent_d68f0290-585c-49be-ad14-d3053d2033b9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DueFromRelatedParties_2bf8869a-09da-4188-a4b2-16fa05312a00" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DueFromRelatedParties"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_5a3955b5-424f-4b10-9aa7-1a1568aedb89" xlink:to="loc_us-gaap_DueFromRelatedParties_2bf8869a-09da-4188-a4b2-16fa05312a00" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_bd911787-551a-4790-9c0c-00ca18bab6d4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_5a3955b5-424f-4b10-9aa7-1a1568aedb89" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_bd911787-551a-4790-9c0c-00ca18bab6d4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipAxis_61c6aefe-1b04-4979-a0d2-680e29235784" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_OwnershipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_bd911787-551a-4790-9c0c-00ca18bab6d4" xlink:to="loc_srt_OwnershipAxis_61c6aefe-1b04-4979-a0d2-680e29235784" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_61c6aefe-1b04-4979-a0d2-680e29235784_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_OwnershipAxis_61c6aefe-1b04-4979-a0d2-680e29235784" xlink:to="loc_srt_OwnershipDomain_61c6aefe-1b04-4979-a0d2-680e29235784_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_7c3d8d0b-cd66-4056-8a62-e3da48911ec2" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_OwnershipAxis_61c6aefe-1b04-4979-a0d2-680e29235784" xlink:to="loc_srt_OwnershipDomain_7c3d8d0b-cd66-4056-8a62-e3da48911ec2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_RecreationalEnterprisesIncMember_8098fb13-4835-461b-88e1-ebaff41dde53" xlink:href="eri-20200630.xsd#eri_RecreationalEnterprisesIncMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_7c3d8d0b-cd66-4056-8a62-e3da48911ec2" xlink:to="loc_eri_RecreationalEnterprisesIncMember_8098fb13-4835-461b-88e1-ebaff41dde53" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_a6498189-c0ff-48dd-9103-3a276b245618" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_bd911787-551a-4790-9c0c-00ca18bab6d4" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_a6498189-c0ff-48dd-9103-3a276b245618" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_a6498189-c0ff-48dd-9103-3a276b245618_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_a6498189-c0ff-48dd-9103-3a276b245618" xlink:to="loc_us-gaap_RelatedPartyDomain_a6498189-c0ff-48dd-9103-3a276b245618_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_d2e8a923-f3fb-4b6b-8381-70bf3176968f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_a6498189-c0ff-48dd-9103-3a276b245618" xlink:to="loc_us-gaap_RelatedPartyDomain_d2e8a923-f3fb-4b6b-8381-70bf3176968f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CaranoFamilyMember_4fdbdf87-589b-4da0-ae33-d01d8847a978" xlink:href="eri-20200630.xsd#eri_CaranoFamilyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_d2e8a923-f3fb-4b6b-8381-70bf3176968f" xlink:to="loc_eri_CaranoFamilyMember_4fdbdf87-589b-4da0-ae33-d01d8847a978" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CSAndYAssociatesMember_1ea4d238-f80b-404e-985b-10d227d51de0" xlink:href="eri-20200630.xsd#eri_CSAndYAssociatesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_d2e8a923-f3fb-4b6b-8381-70bf3176968f" xlink:to="loc_eri_CSAndYAssociatesMember_1ea4d238-f80b-404e-985b-10d227d51de0" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/SegmentInformation" xlink:type="simple" xlink:href="eri-20200630.xsd#SegmentInformation"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/SegmentInformation" xlink:type="extended" id="ie2a888ed50644e77bfdf53c1a96c0719_SegmentInformation"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/SegmentInformationTables" xlink:type="simple" xlink:href="eri-20200630.xsd#SegmentInformationTables"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/SegmentInformationTables" xlink:type="extended" id="i63ac7e42e9b2409ba3d2914b7a58290c_SegmentInformationTables"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/SegmentInformationAdditionalInformationDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#SegmentInformationAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/SegmentInformationAdditionalInformationDetails" xlink:type="extended" id="i736c8476bcfa47b6b6743413d04772db_SegmentInformationAdditionalInformationDetails"/>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/SegmentInformationScheduleofOperatingDataforReportableSegmentsDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#SegmentInformationScheduleofOperatingDataforReportableSegmentsDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/SegmentInformationScheduleofOperatingDataforReportableSegmentsDetails" xlink:type="extended" id="i824a8601a27b47c3b81b0a5855c583bd_SegmentInformationScheduleofOperatingDataforReportableSegmentsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_1f0d2feb-10ee-42a4-8d60-25f981d11ad5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_RevenuesAndExpensesAbstract_ce472b8f-07be-45dc-b391-ee75c577850b" xlink:href="eri-20200630.xsd#eri_RevenuesAndExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_1f0d2feb-10ee-42a4-8d60-25f981d11ad5" xlink:to="loc_eri_RevenuesAndExpensesAbstract_ce472b8f-07be-45dc-b391-ee75c577850b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_70a9630e-0d2e-40f9-bc93-2f63272f4ada" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_RevenuesAndExpensesAbstract_ce472b8f-07be-45dc-b391-ee75c577850b" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_70a9630e-0d2e-40f9-bc93-2f63272f4ada" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_ad09900e-0de9-4e92-b0f0-72d3bc84cfb6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_RevenuesAndExpensesAbstract_ce472b8f-07be-45dc-b391-ee75c577850b" xlink:to="loc_us-gaap_DepreciationAndAmortization_ad09900e-0de9-4e92-b0f0-72d3bc84cfb6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_87dc8fec-8d7f-42b6-88a6-6c5eb117bd73" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_RevenuesAndExpensesAbstract_ce472b8f-07be-45dc-b391-ee75c577850b" xlink:to="loc_us-gaap_OperatingIncomeLoss_87dc8fec-8d7f-42b6-88a6-6c5eb117bd73" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_UnallocatedIncomeAndExpensesAbstract_095a56f9-cfbc-46d6-9c5c-e53770cc2d45" xlink:href="eri-20200630.xsd#eri_UnallocatedIncomeAndExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_1f0d2feb-10ee-42a4-8d60-25f981d11ad5" xlink:to="loc_eri_UnallocatedIncomeAndExpensesAbstract_095a56f9-cfbc-46d6-9c5c-e53770cc2d45" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_8b78e025-1c0f-41d9-a688-6dc9ead7cd14" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_UnallocatedIncomeAndExpensesAbstract_095a56f9-cfbc-46d6-9c5c-e53770cc2d45" xlink:to="loc_us-gaap_InterestExpense_8b78e025-1c0f-41d9-a688-6dc9ead7cd14" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_c1fc31c0-ffb7-47db-abf8-4ae96b97c8f1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_UnallocatedIncomeAndExpensesAbstract_095a56f9-cfbc-46d6-9c5c-e53770cc2d45" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_c1fc31c0-ffb7-47db-abf8-4ae96b97c8f1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrealizedGainLossOnInvestments_7cb4a358-94e6-4769-bcb3-6c5150639f38" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UnrealizedGainLossOnInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_UnallocatedIncomeAndExpensesAbstract_095a56f9-cfbc-46d6-9c5c-e53770cc2d45" xlink:to="loc_us-gaap_UnrealizedGainLossOnInvestments_7cb4a358-94e6-4769-bcb3-6c5150639f38" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_5237f4c8-d91a-4187-b7da-426f6aa3ecf3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_UnallocatedIncomeAndExpensesAbstract_095a56f9-cfbc-46d6-9c5c-e53770cc2d45" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_5237f4c8-d91a-4187-b7da-426f6aa3ecf3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_7ddf9b2f-b7f4-486a-ab9a-790d0512dc3f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_eri_UnallocatedIncomeAndExpensesAbstract_095a56f9-cfbc-46d6-9c5c-e53770cc2d45" xlink:to="loc_us-gaap_NetIncomeLoss_7ddf9b2f-b7f4-486a-ab9a-790d0512dc3f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_d688b99e-2324-443f-844e-aa8c33838b55" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_1f0d2feb-10ee-42a4-8d60-25f981d11ad5" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_d688b99e-2324-443f-844e-aa8c33838b55" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_4bbd5b1f-8078-4729-a20e-4dd85461c2a0" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_d688b99e-2324-443f-844e-aa8c33838b55" xlink:to="loc_srt_ConsolidationItemsAxis_4bbd5b1f-8078-4729-a20e-4dd85461c2a0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_4bbd5b1f-8078-4729-a20e-4dd85461c2a0_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_4bbd5b1f-8078-4729-a20e-4dd85461c2a0" xlink:to="loc_srt_ConsolidationItemsDomain_4bbd5b1f-8078-4729-a20e-4dd85461c2a0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_2796646d-49b0-4c5c-8e86-ba59ce61023e" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_4bbd5b1f-8078-4729-a20e-4dd85461c2a0" xlink:to="loc_srt_ConsolidationItemsDomain_2796646d-49b0-4c5c-8e86-ba59ce61023e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_ae16cd0e-b85d-4f06-862b-a05576958e1b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_2796646d-49b0-4c5c-8e86-ba59ce61023e" xlink:to="loc_us-gaap_OperatingSegmentsMember_ae16cd0e-b85d-4f06-862b-a05576958e1b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateNonSegmentMember_cc34ff53-b61a-4327-b2c0-ef9332491226" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CorporateNonSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_2796646d-49b0-4c5c-8e86-ba59ce61023e" xlink:to="loc_us-gaap_CorporateNonSegmentMember_cc34ff53-b61a-4327-b2c0-ef9332491226" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_2d83cab2-c7ea-41a8-ad53-c9cc80477785" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_d688b99e-2324-443f-844e-aa8c33838b55" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_2d83cab2-c7ea-41a8-ad53-c9cc80477785" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_2d83cab2-c7ea-41a8-ad53-c9cc80477785_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_2d83cab2-c7ea-41a8-ad53-c9cc80477785" xlink:to="loc_us-gaap_SegmentDomain_2d83cab2-c7ea-41a8-ad53-c9cc80477785_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_8887486c-6a70-442a-9032-4e71c6f9331d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_2d83cab2-c7ea-41a8-ad53-c9cc80477785" xlink:to="loc_us-gaap_SegmentDomain_8887486c-6a70-442a-9032-4e71c6f9331d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_WestSegmentMember_f8c54d04-67b3-495c-978d-2336756e2fc3" xlink:href="eri-20200630.xsd#eri_WestSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_8887486c-6a70-442a-9032-4e71c6f9331d" xlink:to="loc_eri_WestSegmentMember_f8c54d04-67b3-495c-978d-2336756e2fc3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MidwestSegmentMember_240ddd7c-fdb3-4a23-852a-c5f25d1a0aca" xlink:href="eri-20200630.xsd#eri_MidwestSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_8887486c-6a70-442a-9032-4e71c6f9331d" xlink:to="loc_eri_MidwestSegmentMember_240ddd7c-fdb3-4a23-852a-c5f25d1a0aca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SouthSegmentMember_d6c50788-ac53-488a-9fca-65ff21b19f29" xlink:href="eri-20200630.xsd#eri_SouthSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_8887486c-6a70-442a-9032-4e71c6f9331d" xlink:to="loc_eri_SouthSegmentMember_d6c50788-ac53-488a-9fca-65ff21b19f29" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_EastSegmentMember_5640d1f1-1388-49a7-afd5-ea3b58e7c30b" xlink:href="eri-20200630.xsd#eri_EastSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_8887486c-6a70-442a-9032-4e71c6f9331d" xlink:to="loc_eri_EastSegmentMember_5640d1f1-1388-49a7-afd5-ea3b58e7c30b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CentralSegmentMember_1dcc25a4-a719-4ba9-98e7-6f63024a6cd7" xlink:href="eri-20200630.xsd#eri_CentralSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_8887486c-6a70-442a-9032-4e71c6f9331d" xlink:to="loc_eri_CentralSegmentMember_1dcc25a4-a719-4ba9-98e7-6f63024a6cd7" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/SegmentInformationScheduleofCapitalExpendituresNetofReportableSegmentsDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#SegmentInformationScheduleofCapitalExpendituresNetofReportableSegmentsDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/SegmentInformationScheduleofCapitalExpendituresNetofReportableSegmentsDetails" xlink:type="extended" id="i43b7efef6c8141ae9ade429ab9b4defc_SegmentInformationScheduleofCapitalExpendituresNetofReportableSegmentsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_4f91bc3c-0335-43d1-8ca4-9eeead8aa03b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CapitalExpendituresNet_bb553fcb-c61e-47f4-ab1a-45358d4eb7ff" xlink:href="eri-20200630.xsd#eri_CapitalExpendituresNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_4f91bc3c-0335-43d1-8ca4-9eeead8aa03b" xlink:to="loc_eri_CapitalExpendituresNet_bb553fcb-c61e-47f4-ab1a-45358d4eb7ff" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_1ae67bd2-eab3-46ef-bc37-cc2226c8013e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_4f91bc3c-0335-43d1-8ca4-9eeead8aa03b" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_1ae67bd2-eab3-46ef-bc37-cc2226c8013e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_b7c1d5d3-338a-469c-8b2b-ff0b5e15b910" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_1ae67bd2-eab3-46ef-bc37-cc2226c8013e" xlink:to="loc_srt_ConsolidationItemsAxis_b7c1d5d3-338a-469c-8b2b-ff0b5e15b910" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_b7c1d5d3-338a-469c-8b2b-ff0b5e15b910_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_b7c1d5d3-338a-469c-8b2b-ff0b5e15b910" xlink:to="loc_srt_ConsolidationItemsDomain_b7c1d5d3-338a-469c-8b2b-ff0b5e15b910_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_e719fcd9-c4c4-4de4-9335-48e19f4c5243" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_b7c1d5d3-338a-469c-8b2b-ff0b5e15b910" xlink:to="loc_srt_ConsolidationItemsDomain_e719fcd9-c4c4-4de4-9335-48e19f4c5243" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_d9f6730e-14c7-4078-8103-f8d992536245" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_e719fcd9-c4c4-4de4-9335-48e19f4c5243" xlink:to="loc_us-gaap_OperatingSegmentsMember_d9f6730e-14c7-4078-8103-f8d992536245" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateNonSegmentMember_644d1851-3e63-4421-81fa-f3b238a28af1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CorporateNonSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_e719fcd9-c4c4-4de4-9335-48e19f4c5243" xlink:to="loc_us-gaap_CorporateNonSegmentMember_644d1851-3e63-4421-81fa-f3b238a28af1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_69ee0477-e6e3-4fe7-813b-7a42d1cc6970" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_1ae67bd2-eab3-46ef-bc37-cc2226c8013e" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_69ee0477-e6e3-4fe7-813b-7a42d1cc6970" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_69ee0477-e6e3-4fe7-813b-7a42d1cc6970_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_69ee0477-e6e3-4fe7-813b-7a42d1cc6970" xlink:to="loc_us-gaap_SegmentDomain_69ee0477-e6e3-4fe7-813b-7a42d1cc6970_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_d9d3f343-374a-40e8-a232-09b6c6741d19" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_69ee0477-e6e3-4fe7-813b-7a42d1cc6970" xlink:to="loc_us-gaap_SegmentDomain_d9d3f343-374a-40e8-a232-09b6c6741d19" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_WestSegmentMember_6fd973fd-140d-4b35-a87a-d8d556705dae" xlink:href="eri-20200630.xsd#eri_WestSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d9d3f343-374a-40e8-a232-09b6c6741d19" xlink:to="loc_eri_WestSegmentMember_6fd973fd-140d-4b35-a87a-d8d556705dae" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MidwestSegmentMember_aa1f620a-7e78-4c7b-b015-5dc0f3199d85" xlink:href="eri-20200630.xsd#eri_MidwestSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d9d3f343-374a-40e8-a232-09b6c6741d19" xlink:to="loc_eri_MidwestSegmentMember_aa1f620a-7e78-4c7b-b015-5dc0f3199d85" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SouthSegmentMember_869e79d8-ccd8-4212-8781-56711a16f677" xlink:href="eri-20200630.xsd#eri_SouthSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d9d3f343-374a-40e8-a232-09b6c6741d19" xlink:to="loc_eri_SouthSegmentMember_869e79d8-ccd8-4212-8781-56711a16f677" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_EastSegmentMember_d7062b21-63f6-4a06-ba8b-41aec88b3ff9" xlink:href="eri-20200630.xsd#eri_EastSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d9d3f343-374a-40e8-a232-09b6c6741d19" xlink:to="loc_eri_EastSegmentMember_d7062b21-63f6-4a06-ba8b-41aec88b3ff9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CentralSegmentMember_c976c712-3e57-48ba-9f0b-742ee99b5c08" xlink:href="eri-20200630.xsd#eri_CentralSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d9d3f343-374a-40e8-a232-09b6c6741d19" xlink:to="loc_eri_CentralSegmentMember_c976c712-3e57-48ba-9f0b-742ee99b5c08" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.eldoradoresorts.com/role/SegmentInformationScheduleofBalanceSheetInformationforReportableSegmentsDetails" xlink:type="simple" xlink:href="eri-20200630.xsd#SegmentInformationScheduleofBalanceSheetInformationforReportableSegmentsDetails"/>
  <link:definitionLink xlink:role="http://www.eldoradoresorts.com/role/SegmentInformationScheduleofBalanceSheetInformationforReportableSegmentsDetails" xlink:type="extended" id="i77f86e7caf2b491e84f06786f6b5b1d4_SegmentInformationScheduleofBalanceSheetInformationforReportableSegmentsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAssetReconcilingItemLineItems_e9c33071-ae83-4a66-9513-5f382802ba6f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingAssetReconcilingItemLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_41fb4ef4-4440-4af1-9f44-15e599bc1f8e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingAssetReconcilingItemLineItems_e9c33071-ae83-4a66-9513-5f382802ba6f" xlink:to="loc_us-gaap_Assets_41fb4ef4-4440-4af1-9f44-15e599bc1f8e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTable_388061ec-63f2-4737-bd31-00ded89c143f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingAssetReconcilingItemLineItems_e9c33071-ae83-4a66-9513-5f382802ba6f" xlink:to="loc_us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTable_388061ec-63f2-4737-bd31-00ded89c143f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_1e5cd61d-5363-443f-b24a-300a7fc3e520" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTable_388061ec-63f2-4737-bd31-00ded89c143f" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_1e5cd61d-5363-443f-b24a-300a7fc3e520" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_1e5cd61d-5363-443f-b24a-300a7fc3e520_default" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_1e5cd61d-5363-443f-b24a-300a7fc3e520" xlink:to="loc_us-gaap_SegmentDomain_1e5cd61d-5363-443f-b24a-300a7fc3e520_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_c6598944-ecdb-4997-a5e5-d0d76cf8c1d6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_1e5cd61d-5363-443f-b24a-300a7fc3e520" xlink:to="loc_us-gaap_SegmentDomain_c6598944-ecdb-4997-a5e5-d0d76cf8c1d6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_WestSegmentMember_db73bc22-ac46-4ee5-89ca-5c513c3d46aa" xlink:href="eri-20200630.xsd#eri_WestSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_c6598944-ecdb-4997-a5e5-d0d76cf8c1d6" xlink:to="loc_eri_WestSegmentMember_db73bc22-ac46-4ee5-89ca-5c513c3d46aa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_MidwestSegmentMember_19fb239b-647e-4f57-8058-654c9baf4939" xlink:href="eri-20200630.xsd#eri_MidwestSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_c6598944-ecdb-4997-a5e5-d0d76cf8c1d6" xlink:to="loc_eri_MidwestSegmentMember_19fb239b-647e-4f57-8058-654c9baf4939" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_SouthSegmentMember_2565b380-adf6-47e4-895a-9fa8e8557fd8" xlink:href="eri-20200630.xsd#eri_SouthSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_c6598944-ecdb-4997-a5e5-d0d76cf8c1d6" xlink:to="loc_eri_SouthSegmentMember_2565b380-adf6-47e4-895a-9fa8e8557fd8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_EastSegmentMember_046033c4-d5a3-482d-8a15-35dff5765fcd" xlink:href="eri-20200630.xsd#eri_EastSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_c6598944-ecdb-4997-a5e5-d0d76cf8c1d6" xlink:to="loc_eri_EastSegmentMember_046033c4-d5a3-482d-8a15-35dff5765fcd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CentralSegmentMember_6db42215-c4f4-4513-a0cd-f53362ad974f" xlink:href="eri-20200630.xsd#eri_CentralSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_c6598944-ecdb-4997-a5e5-d0d76cf8c1d6" xlink:to="loc_eri_CentralSegmentMember_6db42215-c4f4-4513-a0cd-f53362ad974f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_65551888-b515-4d0e-bc74-368dcc81e319" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTable_388061ec-63f2-4737-bd31-00ded89c143f" xlink:to="loc_srt_ConsolidationItemsAxis_65551888-b515-4d0e-bc74-368dcc81e319" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_65551888-b515-4d0e-bc74-368dcc81e319_default" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_65551888-b515-4d0e-bc74-368dcc81e319" xlink:to="loc_srt_ConsolidationItemsDomain_65551888-b515-4d0e-bc74-368dcc81e319_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_2cbd0cf1-48d7-45a9-a735-1d4998f45c91" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_65551888-b515-4d0e-bc74-368dcc81e319" xlink:to="loc_srt_ConsolidationItemsDomain_2cbd0cf1-48d7-45a9-a735-1d4998f45c91" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_eri_CorporateAndEliminationsMember_5fb2c8d4-ce0e-4b3a-82af-1e6aadfb6a42" xlink:href="eri-20200630.xsd#eri_CorporateAndEliminationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_2cbd0cf1-48d7-45a9-a735-1d4998f45c91" xlink:to="loc_eri_CorporateAndEliminationsMember_5fb2c8d4-ce0e-4b3a-82af-1e6aadfb6a42" xlink:type="arc" order="0"/>
  </link:definitionLink>
</link:linkbase>
