sixty Sixtus • sixtyfold · · · Info · Definitions · Synonyms · Characters · · sixty · · Text Latin · · Script 5 · · Length Definitions · · · (noun) the cardinal number that is the product of ten and six. Synonyms: 60, LX. · · Noun Definition 1 (adj) being ten more than fifty. Synonyms: 60, lx, threescore. · · Adjective Definition 1 Synonyms · · · 60 · · Synonym 1 lx · · Synonym 2 threescore · · Synonym 3 Characters · · i latin small letter i U+0069 s latin small letter s U+0073 t latin small letter t U+0074 x latin small letter x U+0078 y latin small letter y U+0079