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

Pearl explores the relationship between cultural prizes and ideas of nationhood, as well as imposter syndrome and external validation, like MFAs, literary awards, and being seen writing in coffeeshops by and with other writers. —Fiction Non Fiction, Literary Hub, 8 Jan. 2026

Testing includes closed-course validation and large-scale simulation alongside public road testing. —Neetika Walter, Interesting Engineering, 8 Jan. 2026

This economic validation strengthens the plant’s social acceptance and incentivizes investments in research, sustainability, and community reinvestment. —Amplified Content Studio, Mercury News, 7 Jan. 2026

Multiple points of validation will help combat dishonest applicants, DEED Deputy Commissioner Evan Rowe told lawmakers at the time. —Alex Derosier, Twin Cities, 6 Jan. 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