From The Collaborative International Dictionary of English v.0.48 :
cunt \cunt\, n.
1. The female pudenda; specifically the vagina. [vulgar
slang]
[PJC]
2. A woman; -- usually used derogatorily and considered
obscene.
[PJC]
From WordNet (r) 3.0 (2006) :
cunt
n 1: a person (usually but not necessarily a woman) who is
thoroughly disliked; "she said her son thought Hillary was
a bitch" [syn: cunt, bitch]
2: obscene terms for female genitals [syn: cunt, puss,
pussy, slit, snatch, twat]