Definition of certify in English:

certify

Syllabification: cer·ti·fy
Pronunciation: /ˈsərtəˌfī
 
/

verb (certifies, certifying, certified)

[with object]
  • 1Attest or confirm in a formal statement: the profits for the year had been certified by the auditors [with clause]: the medical witness certified that death was due to cerebral hemorrhage
    More example sentences
    • He certifies the statements made above are correct and complete.
    • He was certified dead at Fairfield General Hospital.
    • The man, in his early 20s, was certified dead at the scene.
    Synonyms
    verify, guarantee, attest, validate, confirm, substantiate, endorse, vouch for, testify to; provide evidence, give proof, prove, demonstrate
  • 1.1 (often as adjective certified) Officially recognize (someone or something) as possessing certain qualifications or meeting certain standards: a certified scuba instructor board certified in obstetrics and gynecology
    More example sentences
    • Choke holds should be taught only by qualified and certified instructors.
    • To do the review we wanted pathologists who were board certified and had extensive clinical experience, and we wanted to limit the number of reviewers to only a few.
    • I was board certified in general surgery in 1991, and in plastic surgery in 1993.
    Synonyms
    accredit, recognize, license, authorize, approve, warrant
  • 1.2Officially declare insane.
    More example sentences
    • With the exception of those who can be certified insane, these homeless people cannot be detained anywhere against their will.
    • My husband and I have been happily married for 27 years and are known to be certified insane.
    • Only four of the eighteen are, or have been, certified insane.

Origin

Middle English: from Old French certifier, from late Latin certificare, from Latin certus 'certain'.

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