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

• evidence
• proof
• testimony
• documentation
• testament
• confirmation

Examples of validation in a Sentence

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

Recent Examples on the Web

Also, a company can invest in technology that allows real-time threat validation across alerts and logs, thus saving time. —Alex Lanstein, Forbes.com, 4 Aug. 2025

Whether earning recognition for excellence in operations, receiving talent management awards or achieving industry leadership status, the validation effect remains consistent across all categories. —Ascend Agency, Mercury News, 4 Aug. 2025

In relationships where one partner is perceived as more conventionally attractive than the other, insecurities, validation struggles, and social perceptions can, at times, complicate things. —Melissa Fleur Afshar, MSNBC Newsweek, 3 Aug. 2025

In 2022, Ethereum replaced its old transaction validation method, proof-of-work — where armies of computers competed to solve puzzles — with proof-of-stake, where users lock up their ether as collateral to help secure the network. —Mackenzie Sigalos, CNBC, 2 Aug. 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