'butch' definitions:

Definition of 'butch'

(from WordNet)
adjective
Used of men; markedly masculine in appearance or manner [syn: butch, macho]
adjective
(of male or female homosexuals) characterized by stereotypically male traits or appearance
noun
(slang) offensive term for a lesbian who is noticeably masculine [syn: butch, dike, dyke]

Definition of 'butch'

From: GCIDE
  • butch \butch\ (b[.u]ch), adj.
  • 1. markedly masculine in appearance or manner; -- used of men.
  • Syn: macho. [WordNet 1.5]
  • 2. same as lesbian. [pejorative] [WordNet 1.5]

Definition of 'butch'

From: GCIDE
  • butch \butch\ n. a lesbian who is noticeably masculine.
  • Syn: dyke. [WordNet 1.5]