validate

[val-i-deyt]

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·ing.re·val·i·da·tion, nounun·val·i·dat·ed, adjectiveun·val·i·dat·ing, adjective

Synonyms for validate

1. authenticate, verify, prove.

Antonyms for validate

1. disprove.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for revalidation

validate

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 revalidation

validate

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