American English

Definition of attest verb from the Oxford Advanced American Dictionary

     

    attest

     verb
    verb
    NAmE//əˈtɛst//
     
    (formal)Verb Forms present simple I / you / we / they attest
     
    he / she / it attests
     
    past simple attested
     
    -ing form attesting
     
     
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  1. 1[intransitive, transitive] attest (to something) attest (that…) attest (something) to show or prove that something is true synonym bear/give witness (to something) Contemporary accounts attest to his courage and determination. She is, as countless stories about her attest, deeply religious.
  2. 2[transitive] attest (something) attest (that…) to state that you believe that something is true or genuine, for example in court to attest a will The signature was attested by two witnesses.
See the Oxford Advanced Learner's Dictionary entry: attest