Girlfriend (noun)

1. A female romantic partner.
2. A female romantic partner.
3. A female romantic partner.

Origin:

1890, from girl + friend.

Examples:

1. He introduced his girlfriend to his parents.
2. She is his long-time girlfriend.
3. He was nervous about meeting his girlfriend's family.
4. They have been dating for several months and are serious about each other.
5. She broke up with her girlfriend last month.