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

These include power ascension tests and system validation under operating conditions. —Aamir Khollam, Interesting Engineering, 10 Apr. 2026

If the authors submit the paper to a journal, reviewers will probably ask for validation steps before accepting it for publication, Mann says. —Stephanie Pappas, Scientific American, 9 Apr. 2026

But seeking validation has been around as long as civilization itself. —Charles Trepany, USA Today, 9 Apr. 2026

Amanda oozes pick-me energy, unable to build self-esteem from within, instead begging for validation through desirability, something that will always be a slippery slope for someone in a monogamous relationship. —Ile-Ife Okantah, Vulture, 8 Apr. 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