As a Noun:
1. An older pupil at a school who does special duties and helps the teachers to control the younger pupils. English = prefect.
2. A small piece of cloth, metal or paper that is worn on your chest and which has your name on it. English = name tag.
1. When placed on the forehead, a variant of this sign can mean "a defining label or name" of a person in a negative stereotypical sense.
1. Can also be made with the fingers closed together, in the "spoon" handshape.