validate

1 to give evidence or testimony to the truth or factualness of a witness independently validated the policeman's version of events Synonyms argue, attest, authenticate, bear out, certify, corroborate, substantiate, support, confirm, verify, vindicateRelated Words avouch, back (up), testify (to), vouch (for), witness; guarantee, warrant; affirm, assert, aver, avow, declare, profess; demonstrate, document, establish, prove, reinforce (also reenforce)Near Antonyms contradict, gainsay; deny, disavow, disclaim; challenge, contest, dispute, questionAntonyms disprove, rebut, refute

2 to show the existence or truth of by evidence the booming economy in and of itself validated the soundness of the government's economic policies Synonyms demonstrate, document, establish, substantiate, proveRelated Words back (up), buttress, circumstantiate, corroborate; evidence, evince, record, support, uphold, witness; adduce, attest, authenticate, certify, identify; confirm, sustain, verify, vouch; clinch, nail, settle; confess, depose, testifyNear Antonyms challenge, dispute, object; allege, assume, conjecture, guess, presume, surmise, suspectAntonyms disprove, rebut, refute