We found 31 dictionaries that define the word heroism:

General (26 matching dictionaries)

1. heroism: Merriam-Webster
2. heroism: Oxford Learner's Dictionaries
3. heroism: American Heritage Dictionary of the English Language
4. heroism: Collins English Dictionary
5. heroism: Vocabulary.com
6. Heroism, heroism: Wordnik
7. heroism: Cambridge Advanced Learner's Dictionary
8. heroism: Wiktionary
9. heroism: Webster's New World College Dictionary, 4th Ed.
10. heroism: The Wordsmyth English Dictionary-Thesaurus
11. heroism: Infoplease Dictionary
12. Heroism, heroism: Dictionary.com
13. heroism: Cambridge Essential American English Dictionary
14. Heroism (film), Heroism: Wikipedia, the Free Encyclopedia
15. Heroism: Online Plain Text English Dictionary
16. heroism: Webster's Revised Unabridged, 1913 Edition
17. heroism: Rhymezone
18. heroism: AllWords.com Multi-Lingual Dictionary
19. heroism: Webster's 1828 Dictionary
20. heroism: FreeDictionary.org
21. heroism: Mnemonic Dictionary
22. heroism: TheFreeDictionary.com
23. heroism: Wikimedia Commons US English Pronunciations
24. heroism: Longman Dictionary of Contemporary English

Business (1 matching dictionary)

25. heroism: Legal dictionary

Computing (1 matching dictionary)

26. Heroism: Encyclopedia

Medicine (2 matching dictionaries)

27. online medical dictionary (No longer online)
28. heroism: Medical dictionary

Slang (1 matching dictionary)

29. Heroism: Urban Dictionary

(Note: See heroisms as well.)

Definitions from Wiktionary ( ) ▸ noun:  The qualities characteristic of a hero, such as courage, bravery, fortitude, selflessness, etc.; the display of such qualities. Similar: valiance, valorousness, valiancy, gallantry, valour, valor, heroicity, heroicness, herohood, braveness, more... Opposite: cowardice, cowardliness, fearfulness Phrases: Heroism in The Lord of the Rings, tale of heroism, opposite of heroism, act of heroism, more... Adjectives: extraordinary, such, moral, true, individual, great, christian, personal, military, real, quiet Colors:     red,     blue,     gold,     silver,     bronze, more... ▸ Words similar to heroism ▸ Usage examples for heroism ▸ Idioms related to heroism ▸ Wikipedia articles (New!) ▸ Popular adjectives describing heroism ▸ Words that often appear near heroism ▸ Rhymes of heroism ▸ Invented words related to heroism