validation

noun

val·​i·​da·​tion ˌva-lə-ˈdā-shən 

: an act, process, or instance of validating

especially : the determination of the degree of validity of a measuring device

Synonyms

• attestation
• confirmation
• corroboration
• documentation
• evidence
• proof
• substantiation
• testament
• testimonial
• testimony
• voucher
• witness

Examples of validation in a Sentence

I'm afraid we cannot act on your claim without validation.

Recent Examples on the Web

For her supporters, the footage is validation for Ventura, who had been painted by some Combs fans as a disgruntled ex. —Lisa Respers France, CNN Money, 11 May 2025

This invariably leads to teens constantly checking their screens and potentially seeking validation from peers and friends. —Omer Awan, Forbes.com, 10 May 2025

Over the past four weeks, Coinbase has now bounced above its 50-day moving average, leaving a breakout above the 200-day moving average as the last validation of a new uptrend phase. —David Keller, CNBC, 8 May 2025

In some ways, the experiment seemed to be too much for Julieta — as did Ezequiel’s need for (a normal amount of) validation. —Charlotte Walsh, Vulture, 5 May 2025

Word History

Etymology

valid(ate) + -ation, perhaps after French validation

First Known Use

circa 1656, in the meaning defined above

Phrases Containing validation

• self-validation

Rhymes for validation

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation