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From Old French verifier (French: vérifier), from Medieval Latin vērificāre, present active infinitive of vērificō (make true), from Latin vērus (true) + faciō (do, make); see -fy.


  • IPA(key): /ˈvɛɹɪfaɪ/
  • (file)


verify (third-person singular simple present verifies, present participle verifying, simple past and past participle verified)

  1. (transitive) To substantiate or prove the truth of something.
  2. (transitive) To confirm or test the truth or accuracy of something.
    • 1984, InfoWorld, volume 6, number 14, page 67:
      In comparison, it takes about a minute to save, rewind and manually verify a similar file on a cassette.
  3. (transitive, law) To affirm something formally, under oath.

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