<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
    <!-- Field: Doc-Info; Name: Generator; Value: GoFiler Complete; Version: 6.5a -->
    <!-- Field: Doc-Info; Name: VendorURI; Value: https://www.novaworks.com -->
    <!-- Field: Doc-Info; Name: Status; Value: 0x00000000 -->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#Cover" roleURI="http://nextbridgehydrocarbons.com/role/Cover" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#CondensedConsolidatedBalanceSheets" roleURI="http://nextbridgehydrocarbons.com/role/CondensedConsolidatedBalanceSheets" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#CondensedConsolidatedBalanceSheetsParenthetical" roleURI="http://nextbridgehydrocarbons.com/role/CondensedConsolidatedBalanceSheetsParenthetical" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#CondensedConsolidatedStatementsOfOperations" roleURI="http://nextbridgehydrocarbons.com/role/CondensedConsolidatedStatementsOfOperations" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#CondensedConsolidatedStatementsOfStockholdersEquityDeficitAndMezzanine" roleURI="http://nextbridgehydrocarbons.com/role/CondensedConsolidatedStatementsOfStockholdersEquityDeficitAndMezzanine" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#CondensedConsolidatedStatementsOfCashFlows" roleURI="http://nextbridgehydrocarbons.com/role/CondensedConsolidatedStatementsOfCashFlows" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#NatureOfBusiness" roleURI="http://nextbridgehydrocarbons.com/role/NatureOfBusiness" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#GoingConcern" roleURI="http://nextbridgehydrocarbons.com/role/GoingConcern" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#SignificantAccountingPolicies" roleURI="http://nextbridgehydrocarbons.com/role/SignificantAccountingPolicies" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#OilNaturalGasProperties" roleURI="http://nextbridgehydrocarbons.com/role/OilNaturalGasProperties" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#RelatedPartyBalances" roleURI="http://nextbridgehydrocarbons.com/role/RelatedPartyBalances" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#CommitmentsAndContingencies" roleURI="http://nextbridgehydrocarbons.com/role/CommitmentsAndContingencies" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#MezzanineEquity" roleURI="http://nextbridgehydrocarbons.com/role/MezzanineEquity" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#StockholdersEquity" roleURI="http://nextbridgehydrocarbons.com/role/StockholdersEquity" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#IncomeTaxes" roleURI="http://nextbridgehydrocarbons.com/role/IncomeTaxes" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#NotesPayable" roleURI="http://nextbridgehydrocarbons.com/role/NotesPayable" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#AssetRetirementObligations" roleURI="http://nextbridgehydrocarbons.com/role/AssetRetirementObligations" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#SubsequentEvents" roleURI="http://nextbridgehydrocarbons.com/role/SubsequentEvents" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#SignificantAccountingPoliciesPolicies" roleURI="http://nextbridgehydrocarbons.com/role/SignificantAccountingPoliciesPolicies" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#OilNaturalGasPropertiesTables" roleURI="http://nextbridgehydrocarbons.com/role/OilNaturalGasPropertiesTables" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#StockholdersEquityTables" roleURI="http://nextbridgehydrocarbons.com/role/StockholdersEquityTables" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#AssetRetirementObligationsTables" roleURI="http://nextbridgehydrocarbons.com/role/AssetRetirementObligationsTables" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#GoingConcernDetailsNarrative" roleURI="http://nextbridgehydrocarbons.com/role/GoingConcernDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#SignificantAccountingPoliciesDetailsNarrative" roleURI="http://nextbridgehydrocarbons.com/role/SignificantAccountingPoliciesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#OilNaturalGasPropertiesDetails" roleURI="http://nextbridgehydrocarbons.com/role/OilNaturalGasPropertiesDetails" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#OilNaturalGasPropertiesDetailsNarrative" roleURI="http://nextbridgehydrocarbons.com/role/OilNaturalGasPropertiesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#MezzanineEquityDetailsNarrative" roleURI="http://nextbridgehydrocarbons.com/role/MezzanineEquityDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#StockholdersEquityDetails" roleURI="http://nextbridgehydrocarbons.com/role/StockholdersEquityDetails" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#ScheduleOfStockOptionsOutstandingDetails" roleURI="http://nextbridgehydrocarbons.com/role/ScheduleOfStockOptionsOutstandingDetails" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#StockholdersEquityDetailsNarrative" roleURI="http://nextbridgehydrocarbons.com/role/StockholdersEquityDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#IncomeTaxesDetailsNarrative" roleURI="http://nextbridgehydrocarbons.com/role/IncomeTaxesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#AssetRetirementObligationsDetails" roleURI="http://nextbridgehydrocarbons.com/role/AssetRetirementObligationsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="nbh-20260630.xsd#SubsequentEventsDetailsNarrative" roleURI="http://nextbridgehydrocarbons.com/role/SubsequentEventsDetailsNarrative" />
    <link:arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" />
    <link:arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" />
    <link:arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" />
    <link:arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" arcroleURI="http://xbrl.org/int/dim/arcrole/all" />
    <link:arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#notAll" arcroleURI="http://xbrl.org/int/dim/arcrole/notAll" />
    <link:arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/Cover" xlink:title="00000001 - Document - Cover" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/CondensedConsolidatedBalanceSheets" xlink:title="00000002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/CondensedConsolidatedBalanceSheetsParenthetical" xlink:title="00000003 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/CondensedConsolidatedStatementsOfOperations" xlink:title="00000004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/CondensedConsolidatedStatementsOfStockholdersEquityDeficitAndMezzanine" xlink:title="00000005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS&apos; EQUITY (DEFICIT) AND MEZZANINE (Unaudited)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xbrldt:contextElement="segment" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapStatementTable" xlink:type="arc" order="10" xbrldt:closed="true" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaapStatementEquityComponentsAxis" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaapStatementTable" xlink:to="loc_us-gaapStatementEquityComponentsAxis" xlink:type="arc" order="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapEquityComponentDomain" xlink:type="arc" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain_10" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xbrldt:contextElement="segment" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapEquityComponentDomain_10" xlink:type="arc" order="30" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaapCommonStockMember_0" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_us-gaapCommonStockMember_0" xlink:type="arc" order="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaapAdditionalPaidInCapitalMember_10" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_us-gaapAdditionalPaidInCapitalMember_10" xlink:type="arc" order="11" />
      <link:loc xlink:type="locator" xlink:href="nbh-20260630.xsd#nbh_SharesToBeIssuedMember" xlink:label="loc_nbhSharesToBeIssuedMember_20" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_nbhSharesToBeIssuedMember_20" xlink:type="arc" order="21" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaapRetainedEarningsMember_30" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_us-gaapRetainedEarningsMember_30" xlink:type="arc" order="31" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockMember" xlink:label="loc_us-gaapPreferredStockMember_50" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_us-gaapPreferredStockMember_50" xlink:type="arc" order="51" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaapStockholdersEquity_70" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapStockholdersEquity_70" xlink:type="arc" order="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharesOutstanding" xlink:label="loc_us-gaapSharesOutstanding_70" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapSharesOutstanding_70" xlink:type="arc" order="2" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions" xlink:label="loc_us-gaapStockIssuedDuringPeriodValueAcquisitions_70" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapStockIssuedDuringPeriodValueAcquisitions_70" xlink:type="arc" order="3" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xlink:label="loc_us-gaapStockIssuedDuringPeriodSharesAcquisitions_70" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapStockIssuedDuringPeriodSharesAcquisitions_70" xlink:type="arc" order="4" />
      <link:loc xlink:type="locator" xlink:href="nbh-20260630.xsd#nbh_CommonSharesToBeIssuedToDirectorAndOfficer" xlink:label="loc_nbhCommonSharesToBeIssuedToDirectorAndOfficer_70" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_nbhCommonSharesToBeIssuedToDirectorAndOfficer_70" xlink:type="arc" order="5" />
      <link:loc xlink:type="locator" xlink:href="nbh-20260630.xsd#nbh_ImputedInterest" xlink:label="loc_nbhImputedInterest_70" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_nbhImputedInterest_70" xlink:type="arc" order="6" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss_70" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapNetIncomeLoss_70" xlink:type="arc" order="7" />
      <link:loc xlink:type="locator" xlink:href="nbh-20260630.xsd#nbh_CommonSharesToBeIssuedToDirectorAndOfficerShares" xlink:label="loc_nbhCommonSharesToBeIssuedToDirectorAndOfficerShares_70" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_nbhCommonSharesToBeIssuedToDirectorAndOfficerShares_70" xlink:type="arc" order="8" />
    </link:definitionLink>
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/CondensedConsolidatedStatementsOfCashFlows" xlink:title="00000006 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/NatureOfBusiness" xlink:title="999007 - Disclosure - NATURE OF BUSINESS" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/GoingConcern" xlink:title="999008 - Disclosure - GOING CONCERN" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/SignificantAccountingPolicies" xlink:title="999009 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/OilNaturalGasProperties" xlink:title="999010 - Disclosure - OIL &amp; NATURAL GAS PROPERTIES" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/RelatedPartyBalances" xlink:title="999011 - Disclosure - RELATED PARTY BALANCES" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/CommitmentsAndContingencies" xlink:title="999012 - Disclosure - COMMITMENTS AND CONTINGENCIES" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/MezzanineEquity" xlink:title="999013 - Disclosure - MEZZANINE EQUITY" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/StockholdersEquity" xlink:title="999014 - Disclosure - STOCKHOLDERS&#8217; EQUITY" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/IncomeTaxes" xlink:title="999015 - Disclosure - INCOME TAXES" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/NotesPayable" xlink:title="999016 - Disclosure - NOTES PAYABLE" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/AssetRetirementObligations" xlink:title="999017 - Disclosure - ASSET RETIREMENT OBLIGATIONS" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/SubsequentEvents" xlink:title="999018 - Disclosure - SUBSEQUENT EVENTS" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/SignificantAccountingPoliciesPolicies" xlink:title="999019 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/OilNaturalGasPropertiesTables" xlink:title="999020 - Disclosure - OIL &amp; NATURAL GAS PROPERTIES (Tables)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/StockholdersEquityTables" xlink:title="999021 - Disclosure - STOCKHOLDERS&#8217; EQUITY (Tables)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/AssetRetirementObligationsTables" xlink:title="999022 - Disclosure - ASSET RETIREMENT OBLIGATIONS (Tables)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/GoingConcernDetailsNarrative" xlink:title="999023 - Disclosure - GOING CONCERN (Details Narrative)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/SignificantAccountingPoliciesDetailsNarrative" xlink:title="999024 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/OilNaturalGasPropertiesDetails" xlink:title="999025 - Disclosure - OIL &amp; NATURAL GAS PROPERTIES (Details)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/OilNaturalGasPropertiesDetailsNarrative" xlink:title="999026 - Disclosure - OIL &amp; NATURAL GAS PROPERTIES (Details Narrative)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/MezzanineEquityDetailsNarrative" xlink:title="999027 - Disclosure - MEZZANINE EQUITY (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossLineItems" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossTable" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xbrldt:contextElement="segment" xlink:from="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossTable" xlink:type="arc" order="10" xbrldt:closed="true" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaapStatementEquityComponentsAxis" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossTable" xlink:to="loc_us-gaapStatementEquityComponentsAxis" xlink:type="arc" order="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapEquityComponentDomain" xlink:type="arc" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain_10" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xbrldt:contextElement="segment" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapEquityComponentDomain_10" xlink:type="arc" order="30" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockMember" xlink:label="loc_us-gaapPreferredStockMember_0" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_us-gaapPreferredStockMember_0" xlink:type="arc" order="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_us-gaapStockIssuedDuringPeriodSharesNewIssues_20" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="loc_us-gaapStockIssuedDuringPeriodSharesNewIssues_20" xlink:type="arc" order="0" />
    </link:definitionLink>
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/StockholdersEquityDetails" xlink:title="999028 - Disclosure - STOCKHOLDERS&apos; EQUITY (Details)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/ScheduleOfStockOptionsOutstandingDetails" xlink:title="999029 - Disclosure - Schedule of Stock Options Outstanding (Details)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaapBusinessAcquisitionLineItems" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaapScheduleOfBusinessAcquisitionsByAcquisitionTable" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xbrldt:contextElement="segment" xlink:from="loc_us-gaapBusinessAcquisitionLineItems" xlink:to="loc_us-gaapScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:type="arc" order="10" xbrldt:closed="true" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeAxis" xlink:label="loc_us-gaapMeasurementInputTypeAxis" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaapScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="loc_us-gaapMeasurementInputTypeAxis" xlink:type="arc" order="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeDomain" xlink:label="loc_us-gaapMeasurementInputTypeDomain" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaapMeasurementInputTypeAxis" xlink:to="loc_us-gaapMeasurementInputTypeDomain" xlink:type="arc" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeDomain" xlink:label="loc_us-gaapMeasurementInputTypeDomain_10" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xbrldt:contextElement="segment" xlink:from="loc_us-gaapMeasurementInputTypeAxis" xlink:to="loc_us-gaapMeasurementInputTypeDomain_10" xlink:type="arc" order="30" />
      <link:loc xlink:type="locator" xlink:href="nbh-20260630.xsd#nbh_ExercisePriceDollarOnePointTwoZeroFiveSixMember" xlink:label="loc_nbhExercisePriceDollarOnePointTwoZeroFiveSixMember_0" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapMeasurementInputTypeDomain" xlink:to="loc_nbhExercisePriceDollarOnePointTwoZeroFiveSixMember_0" xlink:type="arc" order="1" />
      <link:loc xlink:type="locator" xlink:href="nbh-20260630.xsd#nbh_OptionExpiryAxis" xlink:label="loc_nbhOptionExpiryAxis" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaapScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="loc_nbhOptionExpiryAxis" xlink:type="arc" order="2" />
      <link:loc xlink:type="locator" xlink:href="nbh-20260630.xsd#nbh_OptionExpiryDomain" xlink:label="loc_nbhOptionExpiryDomain" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_nbhOptionExpiryAxis" xlink:to="loc_nbhOptionExpiryDomain" xlink:type="arc" order="20" />
      <link:loc xlink:type="locator" xlink:href="nbh-20260630.xsd#nbh_OptionExpiryDomain" xlink:label="loc_nbhOptionExpiryDomain_10" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xbrldt:contextElement="segment" xlink:from="loc_nbhOptionExpiryAxis" xlink:to="loc_nbhOptionExpiryDomain_10" xlink:type="arc" order="30" />
      <link:loc xlink:type="locator" xlink:href="nbh-20260630.xsd#nbh_Year2033Member" xlink:label="loc_nbhYear2033Member_0" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nbhOptionExpiryDomain" xlink:to="loc_nbhYear2033Member_0" xlink:type="arc" order="2" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_40" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapBusinessAcquisitionLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_40" xlink:type="arc" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased_40" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapBusinessAcquisitionLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased_40" xlink:type="arc" order="1" />
    </link:definitionLink>
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/StockholdersEquityDetailsNarrative" xlink:title="999030 - Disclosure - STOCKHOLDERS&#8217; EQUITY (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossLineItems" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossTable" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xbrldt:contextElement="segment" xlink:from="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossTable" xlink:type="arc" order="10" xbrldt:closed="true" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaapStatementEquityComponentsAxis" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossTable" xlink:to="loc_us-gaapStatementEquityComponentsAxis" xlink:type="arc" order="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapEquityComponentDomain" xlink:type="arc" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain_10" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xbrldt:contextElement="segment" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapEquityComponentDomain_10" xlink:type="arc" order="30" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaapCommonStockMember_10" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_us-gaapCommonStockMember_10" xlink:type="arc" order="11" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaapCommonStockSharesAuthorized_50" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="loc_us-gaapCommonStockSharesAuthorized_50" xlink:type="arc" order="0" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaapCommonStockParOrStatedValuePerShare_50" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="loc_us-gaapCommonStockParOrStatedValuePerShare_50" xlink:type="arc" order="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaapPreferredStockSharesAuthorized_50" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="loc_us-gaapPreferredStockSharesAuthorized_50" xlink:type="arc" order="2" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="loc_us-gaapPreferredStockParOrStatedValuePerShare_50" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="loc_us-gaapPreferredStockParOrStatedValuePerShare_50" xlink:type="arc" order="3" />
      <link:loc xlink:type="locator" xlink:href="nbh-20260630.xsd#nbh_CommonSharesToBeIssuedToDirectorAndOfficerShares" xlink:label="loc_nbhCommonSharesToBeIssuedToDirectorAndOfficerShares_50" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="loc_nbhCommonSharesToBeIssuedToDirectorAndOfficerShares_50" xlink:type="arc" order="4" />
      <link:loc xlink:type="locator" xlink:href="nbh-20260630.xsd#nbh_CommonSharesToBeIssuedToDirectorAndOfficer" xlink:label="loc_nbhCommonSharesToBeIssuedToDirectorAndOfficer_50" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="loc_nbhCommonSharesToBeIssuedToDirectorAndOfficer_50" xlink:type="arc" order="5" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaapCommonStockSharesOutstanding_50" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="loc_us-gaapCommonStockSharesOutstanding_50" xlink:type="arc" order="6" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaapPreferredStockSharesOutstanding_50" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="loc_us-gaapPreferredStockSharesOutstanding_50" xlink:type="arc" order="7" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_50" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapAccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_50" xlink:type="arc" order="8" />
    </link:definitionLink>
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/IncomeTaxesDetailsNarrative" xlink:title="999031 - Disclosure - INCOME TAXES (Details Narrative)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/AssetRetirementObligationsDetails" xlink:title="999032 - Disclosure - ASSET RETIREMENT OBLIGATIONS (Details)" />
    <link:definitionLink xlink:type="extended" xlink:role="http://nextbridgehydrocarbons.com/role/SubsequentEventsDetailsNarrative" xlink:title="999033 - Disclosure - SUBSEQUENT EVENTS (Details Narrative)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventLineItems" xlink:label="loc_us-gaapSubsequentEventLineItems" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTable" xlink:label="loc_us-gaapSubsequentEventTable" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xbrldt:contextElement="segment" xlink:from="loc_us-gaapSubsequentEventLineItems" xlink:to="loc_us-gaapSubsequentEventTable" xlink:type="arc" order="10" xbrldt:closed="true" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaapSubsequentEventTypeAxis" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaapSubsequentEventTable" xlink:to="loc_us-gaapSubsequentEventTypeAxis" xlink:type="arc" order="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaapSubsequentEventTypeDomain" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaapSubsequentEventTypeAxis" xlink:to="loc_us-gaapSubsequentEventTypeDomain" xlink:type="arc" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaapSubsequentEventTypeDomain_10" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xbrldt:contextElement="segment" xlink:from="loc_us-gaapSubsequentEventTypeAxis" xlink:to="loc_us-gaapSubsequentEventTypeDomain_10" xlink:type="arc" order="30" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaapSubsequentEventMember_0" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapSubsequentEventTypeDomain" xlink:to="loc_us-gaapSubsequentEventMember_0" xlink:type="arc" order="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaapStatementEquityComponentsAxis" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaapSubsequentEventTable" xlink:to="loc_us-gaapStatementEquityComponentsAxis" xlink:type="arc" order="2" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapEquityComponentDomain" xlink:type="arc" order="20" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain_10" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xbrldt:contextElement="segment" xlink:from="loc_us-gaapStatementEquityComponentsAxis" xlink:to="loc_us-gaapEquityComponentDomain_10" xlink:type="arc" order="30" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaapCommonStockMember_0" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapEquityComponentDomain" xlink:to="loc_us-gaapCommonStockMember_0" xlink:type="arc" order="2" />
      <link:loc xlink:type="locator" xlink:href="nbh-20260630.xsd#nbh_CommonStockSpecialDividendSharesIssued" xlink:label="loc_nbhCommonStockSpecialDividendSharesIssued_20" />
      <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaapSubsequentEventLineItems" xlink:to="loc_nbhCommonStockSpecialDividendSharesIssued_20" xlink:type="arc" order="0" />
    </link:definitionLink>
</link:linkbase>
