English

Definition of underpin verb from the Oxford Advanced Learner's Dictionary

     

    underpin

     verb
    verb
    BrE BrE//ˌʌndəˈpɪn//
     
    ; NAmE NAmE//ˌʌndərˈpɪn//
     
    Verb Forms present simple I / you / we / they underpin
    BrE BrE//ˌʌndəˈpɪn//
     
    ; NAmE NAmE//ˌʌndərˈpɪn//
     
    he / she / it underpins
    BrE BrE//ˌʌndəˈpɪnz//
     
    ; NAmE NAmE//ˌʌndərˈpɪnz//
     
    past simple underpinned
    BrE BrE//ˌʌndəˈpɪnd//
     
    ; NAmE NAmE//ˌʌndərˈpɪnd//
     
    past participle underpinned
    BrE BrE//ˌʌndəˈpɪnd//
     
    ; NAmE NAmE//ˌʌndərˈpɪnd//
     
    -ing form underpinning
    BrE BrE//ˌʌndəˈpɪnɪŋ//
     
    ; NAmE NAmE//ˌʌndərˈpɪnɪŋ//
     
     
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  1. 1underpin something (formal) to support or form the basis of an argument, a claim, etc. The report is underpinned by extensive research.
  2. 2underpin something (specialist) to support a wall by putting metal, concrete, etc. under it
See the Oxford Advanced American Dictionary entry: underpin