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validate

 - 10 of 18 thesaurus results
Main Entry: validate
Part of Speech: verb
Definition: ascertain the truth, authenticity of something

Synonyms:

John Hancock, approve, authenticate, authorize, bear out, certify, confirm, constitute, corroborate, endorse, give stamp of approval, give the go-ahead, give the green light, give the nod, justify, legalize, legitimize, make binding, make legal, make stick, okay*, ratify, rubber-stamp, sanction, set seal on, sign off on, substantiate, verify

Antonyms:

refuse, reject, veto
Main Entry: approve
Part of Speech: verb
Definition: allow, authorize

Synonyms:

accede, accept, accredit, acquiesce, advocate, affirm, agree, assent, authorize, back*, bless*, boost, buy, buy into, certify, charter, concur, confirm, consent, dig*, empower, encourage, endorse, establish, get behind, give go-ahead, go along with, groove*, hats off to, lap up, license, maintain, make law, make valid, mandate, okay, permit, pronounce, push for, ratify, recommend, sanction, seal, second, sign, sign off on, stump for, subscribe to, support, thumbs up, uphold, validate

Antonyms:

disallow, disapprove, invalidate, oppose, refuse, reject
Main Entry: authenticate
Part of Speech: verb
Definition: establish as real, genuine

Synonyms:

accredit, attest, authorize, bear out, certify, confirm, corroborate, endorse, guarantee, justify, prove, substantiate, validate, verify, vouch, warrant
Main Entry: bear out
Part of Speech: verb
Definition: substantiate

Synonyms:

authenticate, confirm, corroborate, endorse, justify, prove, substantiate, support, uphold, validate, verify, vindicate
Main Entry: certify
Part of Speech: verb
Definition: declare as true

Synonyms:

accredit, approve, ascertain, assure, attest, authenticate, authorize, aver, avow, commission, confirm, corroborate, endorse, guarantee, license, notify, okay, profess, reassure, rubber-stamp, sanction, show, state, swear, testify, validate, verify, vouch, witness

Antonyms:

contradict, counteract, deny, disavow, discredit, invalidate, reject, repudiate
Main Entry: corroborate
Part of Speech: verb
Definition: back up information, story

Synonyms:

approve, authenticate, bear out, certify, check on, check out, check up, confirm, declare true, document, double check, endorse, establish, give nod, justify, okay, prove, ratify, rubber-stamp, strengthen, substantiate, support, sustain, validate, verify
Notes: corroborate is used in a narrower context, usually by way of providing support for testimony in a legal proceeding; confirm is to lend support to a much wider array of things

Antonyms:

contradict, deny, disallow, disclaim, refute, reject
Main Entry: declare
Part of Speech: verb
Definition: make known clearly or officially

Synonyms:

acknowledge, advance, advocate, affirm, allegate, allege, announce, argue, assert, asservate, attest, aver, avow, be positive, blaze, bring forward, certify, cite, claim, confess, confirm, contend, convey, demonstrate, disclose, enunciate, give out, inform, insist, maintain, manifest, notify, pass, proclaim, profess, promulgate, pronounce, propound, publish, put forward, reaffirm, reassert, render, repeat, reveal, set forth, show, sound, state, stress, swear, tell, testify, validate, vouch

Antonyms:

deny, disavow, retract
Main Entry: demonstrate
Part of Speech: verb
Definition: display, show

Synonyms:

authenticate, determine, establish, evidence, evince, exhibit, expose, flaunt, indicate, make evident, make out, manifest, prove, roll out, show and tell, test, testify to, trot out, try, validate

Antonyms:

conceal, hide
Main Entry: establish
Part of Speech: verb
Definition: authenticate; demonstrate

Synonyms:

ascertain, authorize, base, certify, circumstantiate, confirm, constitute, corroborate, decree, determine, disambiguate, discover, enact, find out, formulate, learn, legislate, make, make out, predicate, prescribe, prove, ratify, rest, show, stay, substantiate, validate, verify

Antonyms:

confuse, disprove, invalidate
Main Entry: justify
Part of Speech: verb
Definition: legitimize, substantiate

Synonyms:

absolve, acquit, advocate, alibi, answer for, apologize for, approve, argue for, assert, be answerable for, bear out, brief, claim, clear, condone, confirm, contend, cop a plea, countenance, crawl, defend, do justice to, establish, exculpate, excuse, exonerate, explain, favor, legalize, maintain, make allowances, make good, palliate, pardon, plead, rationalize, rebut, show cause, speak in favor, square, stand up for, support, sustain, uphold, validate, verify, vindicate, warrant
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