What does "tag" mean on a picture on Face book?

Question: What does "tag" mean on a picture on Face book!?

Why would I tag a picture or why would I remove a tag!? Www@QuestionHome@Com

Best Answer - Chosen by Asker:

You have been identified!. If your friends tag you in a pictures, then their friends will see a label with your name on it!. This means your name will publicly appear with the picture!. So, make sure it's a good picture tag because many may identify you with it!Www@QuestionHome@Com

You can make a link to people that are in the photo!.Www@QuestionHome@Com

if you are tagged in a picture simply means its you in that picture, the tag will let people know its youWww@QuestionHome@Com

www!.google!.com
search for define TAGWww@QuestionHome@Com

I'm a member of face book and i wonder that and i dont know Www@QuestionHome@Com