Definition of heroism noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈherəʊɪzəm//
; NAmE NAmE//ˈheroʊɪzəm//
[uncountable] Brave
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very great courage The firefighters displayed both heroism and staunchness. He showed great heroism in going back into the burning building. See related entries: Brave Word Originearly 18th cent.: from French héroïsme, from héros, from Latin heros, from Greek hērōs ‘hero’.
See the Oxford Advanced American Dictionary entry: heroism