Lover is a person who is in romantic relationship with another person. Mistress is a woman who has an extramarital relationship with a married man.

The key difference between a Wife and a Girlfriend is that the wife is legally married to a man, whereas a girlfriend could be a friend but not married to him.

A friend is a person well known to another and regarded with liking, affection, and loyalty. A girlfriend is a female friend with whom a man is romantically involved in a relationship.

Buddy is an informal way to refer to a male friend. Mate is a friend or a companion used as a friendly form of address between men or boys.

Both buddy and pal is one and the same thing. Buddy is an informal way to refer to a male friend. Pal in an informal term used for a male friend or it can also be used for talking to a man who has made you...