Wordnet polsko-angielski 
                         (the qualities of a hero or heroine
exceptional or heroic courage when facing danger (especially in battle)
"he showed great heroism in battle"
 "he received a medal for valor") 
heroism, gallantry, valor, valour, valorousness, valiance, valiancy 
synonim: bohaterstwo
synonim: bohaterskość
synonim: heroizm
Praktyczny słownik religijny polsko-angielski 2005, Krzysztof Czekierda
                        heroism