[ val-i-deyt ]
See synonyms for: validatevalidatedvalidatesvalidating on

verb (used with object),val·i·dat·ed, val·i·dat·ing.
  1. to make valid; substantiate; confirm: Time validated our suspicions.

  2. to give legal force to; legalize.

  1. to give official sanction, confirmation, or approval to, as elected officials, election procedures, documents, etc.: to validate a passport.

Origin of validate

First recorded in 1640–50; from Medieval Latin validātus (past participle of validāre “to make valid”), equivalent to valid- (see valid) + -ātus past participle suffix (see -ate1)

Other words for validate

Opposites for validate

Other words from validate

  • val·i·da·tion [val-i-dey-shuhn] /ˌvæl ɪˈdeɪ ʃən/ noun
  • val·i·da·tor, noun
  • val·i·da·to·ry [val-i-duh-tawr-ee, -tohr-ee], /ˈvæl ɪ dəˌtɔr i, -ˌtoʊr i/, adjective
  • re·val·i·date, verb (used with object), re·val·i·dat·ed, re·val·i·dat·ing.
  • un·val·i·dat·ed, adjective
  • un·val·i·dat·ing, adjective

Words Nearby validate Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use validate in a sentence

British Dictionary definitions for validate


/ (ˈvælɪˌdeɪt) /

  1. to confirm or corroborate

  2. to give legal force or official confirmation to; declare legally valid

Derived forms of validate

  • validation, noun
  • validatory, 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