ego
/ˈegəu; ?@ ˈi:gəu; `iɡo/ n
1 (psychology 心) individual's perception or experience of himself, esp in relation to other people or to the outside world; part of the mind that can think, feel and act 自我. Cf 参看 id, super-ego.
2 (infml 口) self-esteem 自尊; 自负
Losing the match made quite a dent in his ego. 比赛失败对他的自尊心打击极大.