Synonyms of attest

Verb

1. attest, certify, manifest, demonstrate, evidence, testify, bear witness, prove, evidence, show

usage: 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"

2. attest, affirm, verify, assert, avow, aver, swan, swear

usage: authenticate, affirm to be true, genuine, or correct, as in an official capacity; "I attest this signature"

3. testify, attest, take the stand, bear witness, declare

usage: give testimony in a court of law

4. attest, show

usage: establish or verify the usage of; "This word is not attested until 1993"

Definition and meaning of attest (Dictionary)