vt.
1. 證明，證實：例句: Two witnesses must certify that this is your signature.
必須有兩個證人證明這是妳的簽字。2. 證明…合格：例句: These ships were certified seaworthy.
這些船只被證明適於航行。3. [美國英語](銀行)擔保(支票、文件等的)可靠性，保證；確認…正確無誤：例句: The bank manager certified my cheque.
銀行經理確認我的支票正確無誤。4. 發證書(或許可證、執照等)給…；批準：例句: to certify a physician
發給醫師執照5. (醫生)確診(某人)為精神病患者：例句: The doctor certified him insane.
醫生確診他精神失常。vi.(對…)給予證明；作證，保證(常與 to，for 連用)：例句: We can certify for his honesty.
我們可以保證他的誠實。I can certify to his good character.
我可以證明他品行端正。