verb
1.
Synonyms: certify 1, vouch, witness
Related Word: confirm, corroborate, substantiate, verify; support, sustain, uphold, warrant; affirm, asseverate, depone, swear, testify
Contrasted words: confute, controvert, disprove, refute; contradict, deny, gainsay
2.
Synonyms: indicate 2, announce, argue, bespeak, betoken, testify, witness
Related Word: authenticate, confirm, substantiate
Contrasted words: falsify, misrepresent; distort, garble, pervert, twist, warp
Antonyms: belie
3.
Synonyms: testify 1, point (to)