Meaning of the word heroism in English

What does heroism mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

heroism

US /ˈher.oʊ.ɪ.zəm/
UK /ˈher.əʊ.ɪ.zəm/

Noun

great courage:

Example:
an act of heroism