Source : Webster's Revised Unabridged Dictionary (1913)

Self-esteem \Self`-es*teem"\, n.
   The holding a good opinion of one's self; self-complacency.

Source : WordNet®

self-esteem
     n 1: a feeling of pride in yourself [syn: {self-pride}]
     2: the quality of being worthy of esteem or respect; "it was
        beneath his dignity to cheat"; "showed his true dignity
        when under pressure" [syn: {dignity}, {self-respect}, {self-regard}]