# certify

> English word · Verb · IPA /ˈsɜː.tɪ.faɪ/ · frequency rank #26,034

## Definitions
1. To attest to (a fact) as the truth.
2. To authenticate or verify in writing.
3. To attest that a product, service, organization, or person has met an official standard.
4. To inform; to tell (a person) that something is true.
5. To assure (oneself) of something; to ascertain.

## Etymology
From Old French certefier (“confirm, assure, make certain”). Compare French certifier.

## Common misspellings (11)
`ccertify`, `ceritfy`, `cerrtify`, `certfiy`, `certiffy`, `certifyy`, `certiyf`, `certtify`, `cetrify`, `cretify`, `ecrtify`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/certify