'Validate' definitions:

Definition of 'validate'

From: WordNet
verb
Declare or make legally valid [syn: validate, formalize, formalise] [ant: annul, avoid, invalidate, nullify, quash, void]
verb
Prove valid; show or confirm the validity of something [ant: invalidate, nullify]
verb
Give evidence for [syn: validate, corroborate]
verb
Make valid or confirm the validity of; "validate a ticket" [ant: invalidate, vitiate, void]

Definition of 'Validate'

From: GCIDE
  • Validate \Val"i*date\, v. t. [See Valid.] To confirm; to render valid; to give legal force to. [1913 Webster]
  • The chamber of deputies . . . refusing to validate at once the election of an official candidate. --London Spectator. [1913 Webster]

Synonyms of 'validate'

From: Moby Thesaurus