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 of validation

• 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

Torney suggests explaining that AI companions are designed to be engaging through constant validation and agreement. —Sherri Gordon, Parents, 7 Mar. 2026

But for individuals experiencing schizophrenia, bipolar disorder, severe depression, or obsessive-compulsive disorder, that validation may amplify paranoia, grandiosity, or self-destructive thinking. —Catherina Gioino, Fortune, 7 Mar. 2026

For patients who used Zynex devices and employees who worked for the Englewood company, the indictment represented an unsurprising turn of events, while also serving as validation that their suspicions were not wrong after all. —Sam Tabachnik, Denver Post, 5 Mar. 2026

Now San Diego's Aptera Motors has announced that the first vehicle has rolled off its validation assembly line. —New Atlas, 5 Mar. 2026

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