hero
/ˈhɪərəʊ/noun
(pl. -oes)
1- a person, typically a man, who is admired or idealized for their courage, outstanding achievements, or noble qualities（一般指男性）英雄：
a war hero.
战争英雄。
1.1
- the chief male character in a book, play, or film, who is typically identified with good qualities, and with whom the reader is expected to sympathize（书、戏剧或电影中多具良好品质并引人同情的）男主角, 男主人公。
1.2
- (in mythology and folklore) a person of superhuman qualities and often semi-divine origin, in particular one of those whose exploits and dealings with the gods were the subject of ancient Greek myths and legends（神话或传说中的）超人, 半神人（尤指那些与神打交道且有丰功伟绩而成为古希腊神话和传说主要题材的人）。
词源
Middle English (with mythological reference)： via Latin from Greek hērōs.