From WordNet (r) 2.0 (August 2003) [wn]:
girlfriend
n 1: any female friend; "Mary and her girlfriend organized the
party"
2: a girl or young woman with whom a man is romantically
involved; "his girlfriend kicked him out" [syn: girl,
lady friend]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
girlfriend \girl"friend`\ n.
1. any female friend; as, Mary and her girlfriend organized
the party. [WordNet sense 1]
[WordNet 1.5]
2. a girl or young woman with whom a man is romantically
involved; as, his girlfriend kicked him out. [WordNet
sense 2]
Syn: girl, lady friend.
[WordNet 1.5]