verb (used with object), val·i·dat·ed, val·i·dat·ing.

to make valid; substantiate; confirm: Time validated our suspicions.
to give legal force to; legalize.
to give official sanction, confirmation, or approval to, as elected officials, election procedures, documents, etc.: to validate a passport.

Origin of validate

1640–50; < Medieval Latin validātus (past participle of validāre to make valid), equivalent to valid- (see valid) + -ātus -ate1
Related formsval·i·da·tion, nounval·i·da·tor, nounval·i·da·to·ry [val-i-duh-tawr-ee, -tohr-ee] /ˈvæl ɪ dəˌtɔr i, -ˌtoʊr i/, adjectivenon·val·i·da·tion, nounre·val·i·date, verb (used with object), re·val·i·dat·ed, re·val·i·dat··val·i·da·tion, nounun·val·i·dat·ed, adjectiveun·val·i·dat·ing, adjective

Synonyms for validate

Antonyms for validate Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for validation

Contemporary Examples of validation

Historical Examples of validation

  • "Ah, well, I will look after this validation myself," said the minister sharply.

    The Nabob

    Alphonse Daudet

  • Everything depended on the validation, on the turning up of a card.

    The Nabob

    Alphonse Daudet

  • Is validation of this type of experimentation a subject of language?

  • If both are orthodox he gives it his validation as the genuine article.

  • I will charge you five credits for this validation, since I am rendering a service.

    A World by the Tale

    Gordon Randall Garrett

British Dictionary definitions for validation


verb (tr)

to confirm or corroborate
to give legal force or official confirmation to; declare legally valid
Derived Formsvalidation, nounvalidatory, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for validation

1650s, noun of action from validate.



1640s, from Latin validatus, from validus (see valid). Related: Validated; validating.

Online Etymology Dictionary, © 2010 Douglas Harper