<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd http://xbrl.org/2005/xbrldt http://www.xbrl.org/2005/xbrldt-2005.xsd" xmlns:cik0001330967="http://www.MFS.com/20260430">
	<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/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: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://www.xbrl.org/2009/arcrole/dep-concept-deprecatedConcept" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/arcrole/deprecated-2009-12-16.xsd#dep-concept-deprecatedConcept" />
	<link:roleRef roleURI="http://www.MFS.com/20260430/role/RRRiskTable3" xlink:type="simple" xlink:href="c485bpos-20260518.xsd#RRRiskTable3" />
	<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/SeriesOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#SeriesOnly" />
	<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ClassOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ClassOnly" />
	<link:roleRef roleURI="http://xbrl.sec.gov/rr/role/ShareholderFeesData" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderFeesData" />
	<link:roleRef roleURI="http://xbrl.sec.gov/rr/role/OperatingExpensesData" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#OperatingExpensesData" />
	<link:roleRef roleURI="http://xbrl.sec.gov/rr/role/RiskOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#RiskOnly" />
	<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/SeriesOnly">
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain" xlink:label="EntityDomain" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_S000104920Member" xlink:label="S000104920Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="S000104920Member" order="1.0" />
	</link:definitionLink>
	<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/ClassOnly">
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain" xlink:label="ShareClassDomain" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_C000275574Member" xlink:label="C000275574Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000275574Member" order="1.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_C000275577Member" xlink:label="C000275577Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000275577Member" order="2.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_C000275576Member" xlink:label="C000275576Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000275576Member" order="3.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_C000275575Member" xlink:label="C000275575Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000275575Member" order="4.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_C000275578Member" xlink:label="C000275578Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000275578Member" order="5.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_C000275573Member" xlink:label="C000275573Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000275573Member" order="6.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_C000275572Member" xlink:label="C000275572Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000275572Member" order="7.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_C000275571Member" xlink:label="C000275571Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000275571Member" order="8.0" />
	</link:definitionLink>
	<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/rr/role/RiskOnly">
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_AllRisksMember" xlink:label="AllRisksMember" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_PrincipalRisks2Member" xlink:label="PrincipalRisks2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="PrincipalRisks2Member" order="1.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_AllocationRisk2Member" xlink:label="AllocationRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="AllocationRisk2Member" order="2.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_UnderlyingFundsRisk2Member" xlink:label="UnderlyingFundsRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="UnderlyingFundsRisk2Member" order="3.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_InvestmentSelectionRisk2Member" xlink:label="InvestmentSelectionRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="InvestmentSelectionRisk2Member" order="4.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_EquityMarketRiskCompanyRisk2Member" xlink:label="EquityMarketRiskCompanyRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="EquityMarketRiskCompanyRisk2Member" order="5.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_GrowthCompanyRisk2Member" xlink:label="GrowthCompanyRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="GrowthCompanyRisk2Member" order="6.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_ValueCompanyRisk2Member" xlink:label="ValueCompanyRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="ValueCompanyRisk2Member" order="7.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_DebtMarketRisk2Member" xlink:label="DebtMarketRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="DebtMarketRisk2Member" order="8.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_InterestRateRisk2Member" xlink:label="InterestRateRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="InterestRateRisk2Member" order="9.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_CreditRisk2Member" xlink:label="CreditRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="CreditRisk2Member" order="10.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_PrepaymentExtensionRisk2Member" xlink:label="PrepaymentExtensionRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="PrepaymentExtensionRisk2Member" order="11.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_Inflation-AdjustedDebtInstrumentsRisk2Member" xlink:label="Inflation-AdjustedDebtInstrumentsRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="Inflation-AdjustedDebtInstrumentsRisk2Member" order="12.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_FocusRisk2Member" xlink:label="FocusRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="FocusRisk2Member" order="13.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_ForeignRisk2Member" xlink:label="ForeignRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="ForeignRisk2Member" order="14.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_EmergingMarketsRisk2Member" xlink:label="EmergingMarketsRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="EmergingMarketsRisk2Member" order="15.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_CurrencyRisk2Member" xlink:label="CurrencyRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="CurrencyRisk2Member" order="16.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_RealEstate-RelatedInvestmentRisk2Member" xlink:label="RealEstate-RelatedInvestmentRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="RealEstate-RelatedInvestmentRisk2Member" order="17.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_Commodity-RelatedInvestmentsRisk2Member" xlink:label="Commodity-RelatedInvestmentsRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="Commodity-RelatedInvestmentsRisk2Member" order="18.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_When-IssuedDelayedDeliveryandForwardCommitmentTransactionRisk2Member" xlink:label="When-IssuedDelayedDeliveryandForwardCommitmentTransactionRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="When-IssuedDelayedDeliveryandForwardCommitmentTransactionRisk2Member" order="19.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_DerivativesRisk2Member" xlink:label="DerivativesRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="DerivativesRisk2Member" order="20.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_LeveragingRisk2Member" xlink:label="LeveragingRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="LeveragingRisk2Member" order="21.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_CounterpartyandThirdPartyRisk2Member" xlink:label="CounterpartyandThirdPartyRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="CounterpartyandThirdPartyRisk2Member" order="22.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_LiquidityRisk2Member" xlink:label="LiquidityRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="LiquidityRisk2Member" order="23.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260518.xsd#cik0001330967_LargeShareholderRisk2Member" xlink:label="LargeShareholderRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="LargeShareholderRisk2Member" order="24.0" />
	</link:definitionLink>
</link:linkbase>
