certify Definition in the Cambridge English Dictionary
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Definition of “certify” - English Dictionary

Definition of "certify" - American English Dictionary

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certifyverb [T]

 us   /ˈsərt̬·əˌfɑɪ/ fml
to ​state something ​officially, esp. that something is ​true or ​correct or that someone has been ​trained to a ​particularstandard: Inspectors must certify that the ​building is ​safe.
(Definition of certify from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "certify" - British English Dictionary

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certifyverb

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 ​humanconsumption. [T] to say ​officially that someone is ​mentallyill: As a ​young man, he had been certified and ​sent to a ​hospital for the ​mentallyill.
certification
noun [U] uk   /ˌsɜː.tɪ.fɪˈkeɪ.ʃən/  us   /ˌsɝː.t̬ə-/
(Definition of certify from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

Definition of "certify" - Business English Dictionary

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certifyverb [T]

uk   us   /ˈsɜːtɪfaɪ/
to give someone ​officialapproval or ​permission to do a ​job because they have proved that they have the necessary ​skills and ​qualifications to do it: be certified by All of our surgeons have been certified by the American Board of Plastic Surgery.be certified as Stateofficials are encouraging more ​farmers to become certified as ​organicgrowers.
to ​officiallyapprove of something after ​testing its ​quality and proving that it is acceptable: be certified for Pharmaceuticals must be ​checked and certified for ​effectiveness and ​safety.
to ​formally and ​officiallystate that something is ​true, especially by ​signing an ​official or ​legaldocument: certify that The ​rulesrequiresponsors to ​identify themselves and certify that they have no ​financialinterest in the ​projects. To ​claimtaxrelief, ​submit a written ​statement from the ​lender to certify any ​interestpaid on the ​loan.
(Definition of certify from the Cambridge Business English Dictionary © Cambridge University Press)
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