noun
1.
a woman who is a man's usual or preferred companion
took his girl friend out every weekend
Synonyms: best girl, ||chick, ||doney, gal, girl, lady friend, lass, mouse, popsy
2.
a woman who shares with a man a strong and usually sexually oriented mutual attraction
his wife caught him with his girl friend
Synonyms: ||baby, beloved, flame, honey, inamorata, ladylove, steady, sweetheart, sweetie, truelove