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attest

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verb at·test \ə-ˈtest\

Simple Definition of attest

  • : to show, prove, or state that something is true or real

Full Definition of attest

  1. transitive verb
  2. 1 a :  to affirm to be true or genuine; specifically :  to authenticate by signing as a witness b :  to authenticate officially

  3. 2 :  to establish or verify the usage of

  4. 3 :  to be proof of :  manifest <her record attests her integrity>

  5. 4 :  to put on oath

  6. intransitive verb
  7. :  to bear witness :  testify <attest to a belief>

at·tes·ta·tionplay \ˌa-ˌtes-ˈtā-shən, ˌa-tə-ˈstā-\ noun
at·test·erplay \ə-ˈtes-tər\ noun

Examples of attest

  1. I can attest that what he has said is true.

  2. The certificate attests the authenticity of the painting.



Origin of attest

Middle French attester, from Latin attestari, from ad- + testis witness — more at testament


First Known Use: circa 1500

Synonym Discussion of attest

certify, attest, witness, vouch mean to testify to the truth or genuineness of something. certify usually applies to a written statement, especially one carrying a signature or seal <certified that the candidate had met all requirements>. attest applies to oral or written testimony usually from experts or witnesses <attested to the authenticity of the document>. witness applies to the subscribing of one's own name to a document as evidence of its genuineness <witnessed the signing of the will>. vouch applies to one who testifies as a competent authority or a reliable person <willing to vouch for her integrity>.


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