authenticate authenticalness • authentication · · · Info · Definitions · Characters · · authenticate · · Text Latin · · Script 12 · · Length Definitions · · · (verb) establish the authenticity of something. · · Verb Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E t latin small letter t U+0074 u latin small letter u U+0075