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TOEFL BNC: 21915 COCA: 19855

authenticate

verb
/ɔːˈθentɪkeɪt/
/ɔːˈθentɪkeɪt/
Verb Forms
present simple I / you / we / they authenticate
/ɔːˈθentɪkeɪt/
/ɔːˈθentɪkeɪt/
he / she / it authenticates
/ɔːˈθentɪkeɪts/
/ɔːˈθentɪkeɪts/
past simple authenticated
/ɔːˈθentɪkeɪtɪd/
/ɔːˈθentɪkeɪtɪd/
past participle authenticated
/ɔːˈθentɪkeɪtɪd/
/ɔːˈθentɪkeɪtɪd/
-ing form authenticating
/ɔːˈθentɪkeɪtɪŋ/
/ɔːˈθentɪkeɪtɪŋ/
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  1. to prove that something is real, true or what somebody claims it is证明…是真实的;证实
    • authenticate something The letter has been authenticated by handwriting experts.这封信已由笔迹专家证明是真的。
    • authenticate something as something Experts have authenticated the writing as that of Byron himself.专家鉴定这字迹是拜伦的亲笔。
    Oxford Collocations DictionaryAuthenticate is used with these nouns as the object:
    • document
    See full entry
    Word Originearly 17th cent.: from medieval Latin authenticat- ‘established as valid’, from the verb authenticare, from late Latin authenticus ‘genuine’, from Greek authentikos ‘principal, genuine’.

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