Definition of 'attest'

Verb

1. provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes; "His high fever attested to his illness"; "The buildings in Rome manifest a high level of architectural sophistication"; "This decision demonstrates his sense of fairness"
      Synonyms: certify manifest demonstrate evidence
2. authenticate, affirm to be true, genuine, or correct, as in an official capacity; "I attest this signature"
3. give testimony in a court of law
      Synonyms: testify take the stand bear witness
4. establish or verify the usage of; "This word is not attested until 1993"

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