sixteen sixte • sixteener · · · Info · Definitions · Synonyms · Characters · · sixteen · · Text Latin · · Script 7 · · Length Definitions · · · (noun) the cardinal number that is the sum of fifteen and one. Synonyms: 16, XVI. · · Noun Definition 1 (adj) being one more than fifteen. Synonyms: 16, xvi. · · Adjective Definition 1 Synonyms · · · 16 · · Synonym 1 xvi · · Synonym 2 Characters · · e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E s latin small letter s U+0073 t latin small letter t U+0074 x latin small letter x U+0078