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From Middle English vouchen, that borrowed from Old French voucher, from Latin vocāre, present active infinitive of vocō.


  • IPA(key): /ˈvaʊtʃ/
    • (file)
  • Rhymes: -aʊtʃ


vouch (third-person singular simple present vouches, present participle vouching, simple past and past participle vouched)

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  1. To take responsibility for; to express confidence in; to witness; to obtest.
  2. To warrant; to maintain by affirmations
    Synonyms: attest, affirm, avouch
    • October 28, 1705, Francis Atterbury, a sermon
      They made him ashamed first to vouch the truth of the relation, and afterwards to credit it.
    I can vouch that the match took place.
  3. To back; to support; to confirm.
  4. To call into court to warrant and defend, or to make good a warranty of title.
  5. (obsolete) To call; to summon.
  6. To bear witness; to give testimony or full attestation.
    • 1714 February, Jonathan Swift, “The Publick Spirit of the Whigs. Set forth in Their Generous Encouragement of the Author of the Crisis. []”, in Thomas Sheridan and John Nichols, editors, The Works of the Rev. Jonathan Swift, [], volume III, new edition, London: [] J[oseph] Johnson, [], published 1801, OCLC 1184656746, page 325:
      Here he directly charges her majesty with delivering a falsehood to her parliament from the throne; and declares he will not believe her, until the elector of Hanover himself shall vouch for the truth of what she has so solemnly affirmed.
  7. To call as a witness.
  8. To assert; to aver; to declare.
    (Can we find and add a quotation of Shakespeare to this entry?)
    (Can we add an example for this sense?)

Related terms[edit]


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vouch (plural vouches)

  1. Warrant; attestation.