The Collaborative International Dictionary of English v.0.48:
colors \colors\ n. 1. a flag flown by a ship to show its nationality. Syn: ensign, colours. [WordNet 1.5] 2. a distinguishing emblem; as, his tie proclaimed his school colors. Syn: colours. [WordNet 1.5]WordNet (r) 3.0 (2006):
colors n 1: a flag that shows its nationality [syn: colors, colours] 2: a distinguishing emblem; "his tie proclaimed his school colors" [syn: colors, colours]