attest meaning and definition

ATTEST verb

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, demonstrate, evidence, manifest
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: bear witness, take the stand, testify
4. establish or verify the usage of
   • "This word is not attested until 1993"