What do you call a young lady?

Answer 1

A teenage girl is definitely young, but perhaps she should only be referred to as a lady if she truly acts like a lady.

If a teenage girl meets the criterion, she may certainly be called a "young lady".

Answer 2

A young lady is a young girl who acts like a lady. She has good manners and etiquette, talks like she has class, and her actions are lady-like.

Answer 3

You can call a young lady by her first name.