From WordNet (r) 2.0 (August 2003) [wn]:
3
adj : being one more than two [syn: three, iii]
n : the cardinal number that is the sum of one and one and one
[syn: three, III, trio, threesome, tierce,
leash, troika, triad, trine, trinity,
ternary, ternion, triplet, tercet, terzetto,
trey, deuce-ace]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
3 \3\ adj.
1. one more than two; denoting a quantity consisting of three
items or units; -- representing the number three as an
Arabic numeral.
Syn: three, iii
[WordNet 1.5 +PJC]