Testify

مترادف و متضاد testify

1. verb vouch for; give testimony
   Synonyms: affirm, announce, argue, assert, attest, bear witness, bespeak, betoken, certify, corroborate, cross one’s heart, declare, demonstrate, depone, depose, evince, give evidence, give facts, give one’s word, indicate, make evident, mount, point to, prove, say so, show, sing, stand up for, state, swear, swear to, swear up and down, token, warrant, witness