au·then·tic·ate /ɔːˈθentɪkeɪt $ ɒː-/ verb [transitiveT] REAL/NOT FALSE OR ARTIFICIALto prove that something is true or real 证明〔某物〕是真的,鉴定〔某物〕之真实性 The painting has been authenticated by experts. 这幅画专家鉴定为真迹。
passwords which can authenticate electronic documents 能够验证电子文档的密码
—authentication /ɔːˌθentɪˈkeɪʃən $ ɒː-/ noun [uncountableU]