Persona

Noun

 * 1) A social role.
 * 2) A character played by an actor.
 * 3)  The mask or appearance one presents to the world.
 * 4)  A type of skin used in Mozilla software.

Thesaurus
an existence, anima, article, being, body, character, coconscious, collective unconscious, conscience, conscious self, creature, critter, death instinct, ego, ego ideal, ego-id conflict, entelechy, entity, ethical self, exterior, facade, face, foreconscious, front, guise, id, identity, individual, integer, item, libidinal energy, libido, life, mask, mind, module, monad, motive force, object, organism, part, person, personality, pleasure principle, point, preconscious, primitive self, psyche, psychic apparatus, racial unconscious, role, self, single, singleton, something, soul, subconscious, subconscious mind, subliminal, subliminal self, submerged mind, superego, thing, unconscious, unconscious mind, unit, vital impulse