WordWeb Online

1. A girl or young woman with whom a man is romantically involved
   "his girlfriend kicked him out";
   - girl, lady friend, patootie [US, informal], sweetheart
    
2. Any female friend
   "Mary and her girlfriend organized the party"

Derived forms: girlfriends

Type of: adult female, china [Brit, informal], friend, lover, mate [Brit, informal], woman

Encyclopedia: Girlfriend, Eh?