certify
UK /ˈsɜː.tɪ.faɪ/ · US /ˈsɝ.tɪ.faɪ/ verb
Forms certifies certifying certified
- verb (transitive) To attest to (a fact) as the truth.
- verb (transitive, law) To authenticate or verify in writing.
- verb (transitive) To attest that a product, service, organization, or person has met an official standard. “These blankets have been certified as fireproof.”
- verb (transitive, archaic) To inform; to tell (a person) that something is true.
- verb (archaic, reflexive) To assure (oneself) of something; to ascertain.
Synonyms
attest witness vouch for approve confirm manifest demonstrate evidence license licence endorse indorse
Antonyms
Etymology
From Old French certefier (“confirm, assure, make certain”). Compare French certifier.
Webster’s 1913
- verb To give cetain information to; to assure; to make certain.
- verb To give certain information of; to make certain, as a fact; to verify. Hammond.
Etymology [F. certifier, LL. certificare; L. certus certain + facere to make. See Certain, and cf. Certificate, v. t.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “certify”, CC BY-SA 4.0. Details