Englishvalidate
verb
1 clinical trials now exist to validate this claim:
prove, give proof of, show to be true, give substance to;
uphold, support, back up, bear out, justify, vindicate, substantiate, corroborate, verify, demonstrate, authenticate, confirm, endorse, give credence to, lend weight to;
vouch for, attest to, testify to, stand by, bear witness to.
▷antonyms invalidate, disprove.
2 the board refused to validate the aircraft's US certificate of airworthiness:
ratify, endorse, confirm, approve, agree to, accept, consent to, assent to, affirm, authorize, make valid, sanction, formalize, recognize, legalize, legitimize, warrant, license, certify;
sign, countersign, put one's name to, set one's seal to.
▷antonyms invalidate, reject, revoke.
validate Oxford Dictionary of English