AlterEgo

An alter ego (in latin "the other I") is a second self, a second personality or persona within a person * Another side of oneself; a second self * An intimate friend, considered another side of oneself * the opposite side of a personality * the opposite of who you usually are and your presonality * My alter ego's name is "Sasha Dubois", and she's a social, flirty kind of girl, meanwhile, I'm a shy person***

EGO DeFiNiTioN

(Psychoanalysis) the conscious mind * Your consciousness of your own identity * an inflated feeling of pride in your superiority to others * The self, especially as distinct from the world and other selves * In psychoanalysis, the division of the psyche that is conscious, most immediately controls thought and behavior, and is most in touch with external reality * An exaggerated sense of self-importance; conceit * Appropriate pride in oneself; self-esteem * somebody's idea of his or her own importance or worth, usually of an appropriate level *