1. Literally, one’s own name as opposed to a false name: A book or published work with the author’s real name.
2. The name given to itself by a tribe, social group, or people, as distinguished from a name given by foreign tribes or by anyone else.
3. A word that describes itself; such as, "pronoun is a pronoun", "polysyllabic is polysyllabic", "abbrv. is an abbreviation", "word is a word", etc.