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English definition of “certify”

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certify

verb uk   /ˈsɜː.tɪ.faɪ/ us    /ˈsɝː.t̬ə-/
[I or T] to say in a formal or official way, usually in writing, that something is true or correct: [+ (that)] I hereby certify (that) the above information is true and accurate. [+ noun/adj] The driver was certified (as) dead on arrival at the hospital. The meat has been certified (as) fit for human consumption. [T] to say officially that someone is mentally ill: As a young man, he had been certified and sent to a hospital for the mentally ill.
certification
noun [U] uk   /ˌsɜː.tɪ.fɪˈkeɪ.ʃən/ us    /ˌsɝː.t̬ə-/
(Definition of certify from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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