What does this symbol means?

Question

it has the letter "A" with a circle around it.

Answer 1

Well if it's a capital a ('A') with a circle around it, it means Anarchy.

If it's a lowercase a ('a') with a circle around it, it means at.

Example @

Answer 2

In India it would mean that a film is rated as for "Adults Only" meaning only those above 18 can see the film

Answer 3

Anarchy  

Answer 4

Do you mean this?

@

That means "at".

Answer 5

If you mean the @ symbol, it means "at". For example: ( [e-mail] ). It really means ( Hotty29 at AOL.com ).