We found 36 dictionaries that define the word self defense:

General (24 matching dictionaries)

1. self-defense: Merriam-Webster
2. self-defense: Oxford Learner's Dictionaries
3. self-defense: American Heritage Dictionary of the English Language
4. self-defense, self-defense: Collins English Dictionary
5. self-defense: Vocabulary.com
6. Self-Defense, Self-defense, self-defense: Wordnik
7. self-defense: Cambridge Advanced Learner's Dictionary
8. self-defense: Wiktionary
9. self-defense: Webster's New World College Dictionary, 4th Ed.
10. self-defense: The Wordsmyth English Dictionary-Thesaurus
11. self-defense: Infoplease Dictionary
12. self-defense, self defense: Dictionary.com
13. self-defense: Online Etymology Dictionary
14. self-defense: Cambridge Essential American English Dictionary
15. Self Defense (disambiguation), Self Defense, Self-defense, Self-defense (Sweden), Self-defense (United States), Self-defense (theory), Self defense: Wikipedia, the Free Encyclopedia
16. Self-defense: Online Plain Text English Dictionary
17. self-defense: Webster's Revised Unabridged, 1913 Edition
18. self-defense: Rhymezone
19. Self-defense: AllWords.com Multi-Lingual Dictionary
20. self-defense: Webster's 1828 Dictionary
21. self-defense: FreeDictionary.org
22. self-defense: Mnemonic Dictionary
23. self-defense: TheFreeDictionary.com

Business (6 matching dictionaries)

24. self-defense: Webster's New World Law Dictionary
25. self-defense: Law.com Dictionary
26. Everybody's Legal Dictionary (No longer online)
27. Glossary of Legal Terms (No longer online)
28. Self-Defense, Self defense: Legal dictionary
29. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

30. Self defense, self-defense: Encyclopedia

Medicine (1 matching dictionary)

31. self-defense: Medical dictionary

Miscellaneous (1 matching dictionary)

32. Navajo Code Talkers' Dictionary (No longer online)

Religion (1 matching dictionary)

33. Self-Defense: Catholic Encyclopedia

Slang (1 matching dictionary)

34. self defense: Urban Dictionary

Tech (1 matching dictionary)

35. DOD Dictionary of Military Terms (No longer online)

Definitions from Wiktionary (Self defense) ▸ noun:  Alternative form of self-defense [The means of defending oneself from physical attack.] Opposite: offense, aggression, attack Phrases: united self defense force of colombia, united self defense group of colombia, in self defense, black panther party for self defense, self defense force, more... ▸ Word origin ▸ Words similar to self defense ▸ Usage examples for self defense ▸ Idioms related to self defense ▸ Wikipedia articles (New!) ▸ Words that often appear near self defense ▸ Rhymes of self defense ▸ Invented words related to self defense