<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by Fujitsu Interstage XWand B0254 -->
<!-- Generated by Broadridge Financial Solutions Inc -->
<link:linkbase 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" xmlns:tsr="http://tsr/20260531" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink">
  <link:roleRef roleURI="http://xbrl.sec.gov/oef/role/Defaults" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#Defaults"/>
  <link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ShareholderReport" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderReport"/>
  <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/oef/role/BroadBasedIndexOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#BroadBasedIndexOnly"/>
  <link:roleRef roleURI="http://xbrl.sec.gov/oef/role/AdditionalIndexOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#AdditionalIndexOnly"/>
  <link:roleRef roleURI="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="simple" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-roles-2025.xsd#eedm"/>
  <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: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="tsr-20260531.xsd#tsr_C000113698Member" xlink:label="C000113698Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000113698Member" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_C000113699Member" xlink:label="C000113699Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000113699Member" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_C000113700Member" xlink:label="C000113700Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000113700Member" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_C000002076Member" xlink:label="C000002076Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000002076Member" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_C000066986Member" xlink:label="C000066986Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000066986Member" order="5.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/BroadBasedIndexOnly">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_BroadBasedIndexDomain" xlink:label="BroadBasedIndexDomain"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202412245078_7602Member" xlink:label="bench202412245078_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="bench202412245078_7602Member" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202412245078_7601Member" xlink:label="bench202412245078_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="bench202412245078_7601Member" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202412245078_7600Member" xlink:label="bench202412245078_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="bench202412245078_7600Member" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202412245078_7598Member" xlink:label="bench202412245078_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="bench202412245078_7598Member" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202412245078_7599Member" xlink:label="bench202412245078_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="bench202412245078_7599Member" order="6.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/AdditionalIndexOnly">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_AdditionalIndexDomain" xlink:label="AdditionalIndexDomain"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202607137874_7602Member" xlink:label="bench202607137874_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdditionalIndexDomain" xlink:to="bench202607137874_7602Member" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202607137874_7601Member" xlink:label="bench202607137874_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdditionalIndexDomain" xlink:to="bench202607137874_7601Member" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202607137874_7600Member" xlink:label="bench202607137874_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdditionalIndexDomain" xlink:to="bench202607137874_7600Member" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202607137874_7598Member" xlink:label="bench202607137874_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdditionalIndexDomain" xlink:to="bench202607137874_7598Member" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202607137874_7599Member" xlink:label="bench202607137874_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdditionalIndexDomain" xlink:to="bench202607137874_7599Member" order="7.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="InvestmentTypeCategorizationMember"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073402_7602Member" xlink:label="bench202408073402_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073402_7602Member" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033974_7602Member" xlink:label="bench202409033974_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033974_7602Member" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202407102488_7602Member" xlink:label="bench202407102488_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202407102488_7602Member" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033979_7602Member" xlink:label="bench202409033979_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033979_7602Member" order="12.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033976_7602Member" xlink:label="bench202409033976_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033976_7602Member" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033978_7602Member" xlink:label="bench202409033978_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033978_7602Member" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033973_7602Member" xlink:label="bench202409033973_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033973_7602Member" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033975_7602Member" xlink:label="bench202409033975_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033975_7602Member" order="16.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033977_7602Member" xlink:label="bench202409033977_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033977_7602Member" order="17.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033983_7602Member" xlink:label="bench202409033983_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033983_7602Member" order="18.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033984_7602Member" xlink:label="bench202409033984_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033984_7602Member" order="19.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033972_7602Member" xlink:label="bench202409033972_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033972_7602Member" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033982_7602Member" xlink:label="bench202409033982_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033982_7602Member" order="21.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033985_7602Member" xlink:label="bench202409033985_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033985_7602Member" order="22.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033980_7602Member" xlink:label="bench202409033980_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033980_7602Member" order="23.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073415_7602Member" xlink:label="bench202408073415_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073415_7602Member" order="24.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033981_7602Member" xlink:label="bench202409033981_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033981_7602Member" order="25.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073416_7602Member" xlink:label="bench202408073416_7602Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073416_7602Member" order="26.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073402_7601Member" xlink:label="bench202408073402_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073402_7601Member" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033974_7601Member" xlink:label="bench202409033974_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033974_7601Member" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202407102488_7601Member" xlink:label="bench202407102488_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202407102488_7601Member" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033979_7601Member" xlink:label="bench202409033979_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033979_7601Member" order="12.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033976_7601Member" xlink:label="bench202409033976_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033976_7601Member" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033978_7601Member" xlink:label="bench202409033978_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033978_7601Member" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033973_7601Member" xlink:label="bench202409033973_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033973_7601Member" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033975_7601Member" xlink:label="bench202409033975_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033975_7601Member" order="16.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033977_7601Member" xlink:label="bench202409033977_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033977_7601Member" order="17.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033983_7601Member" xlink:label="bench202409033983_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033983_7601Member" order="18.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033984_7601Member" xlink:label="bench202409033984_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033984_7601Member" order="19.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033972_7601Member" xlink:label="bench202409033972_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033972_7601Member" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033982_7601Member" xlink:label="bench202409033982_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033982_7601Member" order="21.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033985_7601Member" xlink:label="bench202409033985_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033985_7601Member" order="22.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033980_7601Member" xlink:label="bench202409033980_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033980_7601Member" order="23.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073415_7601Member" xlink:label="bench202408073415_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073415_7601Member" order="24.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033981_7601Member" xlink:label="bench202409033981_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033981_7601Member" order="25.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073416_7601Member" xlink:label="bench202408073416_7601Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073416_7601Member" order="26.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073402_7600Member" xlink:label="bench202408073402_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073402_7600Member" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033974_7600Member" xlink:label="bench202409033974_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033974_7600Member" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202407102488_7600Member" xlink:label="bench202407102488_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202407102488_7600Member" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033979_7600Member" xlink:label="bench202409033979_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033979_7600Member" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033976_7600Member" xlink:label="bench202409033976_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033976_7600Member" order="12.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033978_7600Member" xlink:label="bench202409033978_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033978_7600Member" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033973_7600Member" xlink:label="bench202409033973_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033973_7600Member" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033975_7600Member" xlink:label="bench202409033975_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033975_7600Member" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033977_7600Member" xlink:label="bench202409033977_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033977_7600Member" order="16.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033983_7600Member" xlink:label="bench202409033983_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033983_7600Member" order="17.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033984_7600Member" xlink:label="bench202409033984_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033984_7600Member" order="18.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033972_7600Member" xlink:label="bench202409033972_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033972_7600Member" order="19.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033982_7600Member" xlink:label="bench202409033982_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033982_7600Member" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033985_7600Member" xlink:label="bench202409033985_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033985_7600Member" order="21.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033980_7600Member" xlink:label="bench202409033980_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033980_7600Member" order="22.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073415_7600Member" xlink:label="bench202408073415_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073415_7600Member" order="23.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033981_7600Member" xlink:label="bench202409033981_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033981_7600Member" order="24.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073416_7600Member" xlink:label="bench202408073416_7600Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073416_7600Member" order="25.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073402_7598Member" xlink:label="bench202408073402_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073402_7598Member" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033974_7598Member" xlink:label="bench202409033974_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033974_7598Member" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202407102488_7598Member" xlink:label="bench202407102488_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202407102488_7598Member" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033979_7598Member" xlink:label="bench202409033979_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033979_7598Member" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033976_7598Member" xlink:label="bench202409033976_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033976_7598Member" order="12.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033978_7598Member" xlink:label="bench202409033978_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033978_7598Member" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033973_7598Member" xlink:label="bench202409033973_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033973_7598Member" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033975_7598Member" xlink:label="bench202409033975_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033975_7598Member" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033977_7598Member" xlink:label="bench202409033977_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033977_7598Member" order="16.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033983_7598Member" xlink:label="bench202409033983_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033983_7598Member" order="17.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033984_7598Member" xlink:label="bench202409033984_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033984_7598Member" order="18.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033972_7598Member" xlink:label="bench202409033972_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033972_7598Member" order="19.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033982_7598Member" xlink:label="bench202409033982_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033982_7598Member" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033985_7598Member" xlink:label="bench202409033985_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033985_7598Member" order="21.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033980_7598Member" xlink:label="bench202409033980_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033980_7598Member" order="22.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073415_7598Member" xlink:label="bench202408073415_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073415_7598Member" order="23.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033981_7598Member" xlink:label="bench202409033981_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033981_7598Member" order="24.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073416_7598Member" xlink:label="bench202408073416_7598Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073416_7598Member" order="25.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073402_7599Member" xlink:label="bench202408073402_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073402_7599Member" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033974_7599Member" xlink:label="bench202409033974_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033974_7599Member" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202407102488_7599Member" xlink:label="bench202407102488_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202407102488_7599Member" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033979_7599Member" xlink:label="bench202409033979_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033979_7599Member" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033976_7599Member" xlink:label="bench202409033976_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033976_7599Member" order="12.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033978_7599Member" xlink:label="bench202409033978_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033978_7599Member" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033973_7599Member" xlink:label="bench202409033973_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033973_7599Member" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033975_7599Member" xlink:label="bench202409033975_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033975_7599Member" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033977_7599Member" xlink:label="bench202409033977_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033977_7599Member" order="16.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033983_7599Member" xlink:label="bench202409033983_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033983_7599Member" order="17.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033984_7599Member" xlink:label="bench202409033984_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033984_7599Member" order="18.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033972_7599Member" xlink:label="bench202409033972_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033972_7599Member" order="19.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033982_7599Member" xlink:label="bench202409033982_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033982_7599Member" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033985_7599Member" xlink:label="bench202409033985_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033985_7599Member" order="21.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033980_7599Member" xlink:label="bench202409033980_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033980_7599Member" order="22.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073415_7599Member" xlink:label="bench202408073415_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073415_7599Member" order="23.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202409033981_7599Member" xlink:label="bench202409033981_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202409033981_7599Member" order="24.0"/>
    <link:loc xlink:type="locator" xlink:href="tsr-20260531.xsd#tsr_bench202408073416_7599Member" xlink:label="bench202408073416_7599Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeCategorizationMember" xlink:to="bench202408073416_7599Member" order="25.0"/>
  </link:definitionLink>
</link:linkbase>
