The Collaborative International Dictionary of English v.0.48:
12 \12\ adj. 1. denoting a quantity consisting of 12 items or units; -- representing the number twelve as Arabic numerals Syn: twelve, xii, dozen [WordNet 1.5 +PJC]WordNet (r) 3.0 (2006):
12 adj 1: denoting a quantity consisting of 12 items or units [syn: twelve, 12, xii, dozen] n 1: the cardinal number that is the sum of eleven and one [syn: twelve, 12, XII, dozen]