xii xidcm • xiii · · · Info · Definitions · Synonyms · Characters · · xii · · Text Latin · · Script 3 · · Length 2 · · Syllables Definitions · · · (noun) the cardinal number that is the sum of eleven and one. Synonyms: twelve, 12, XII, dozen. · · Noun Definition 1 (adj) denoting a quantity consisting of 12 items or units. Synonyms: twelve, 12, dozen. · · Adjective Definition 1 Synonyms · · · twelve · · Synonym 1 12 · · Synonym 2 dozen · · Synonym 3 Characters · · i latin small letter i U+0069 x latin small letter x U+0078