We found 24 dictionaries that define the word firefighter:

General (21 matching dictionaries)

1. firefighter: Merriam-Webster
2. firefighter: Oxford Learner's Dictionaries
3. firefighter: American Heritage Dictionary of the English Language
4. firefighter: Collins English Dictionary
5. firefighter: Vocabulary.com
6. Firefighter, firefighter: Wordnik
7. firefighter: Cambridge Advanced Learner's Dictionary
8. firefighter: Wiktionary
9. firefighter: Webster's New World College Dictionary, 4th Ed.
10. firefighter: The Wordsmyth English Dictionary-Thesaurus
11. firefighter: Infoplease Dictionary
12. firefighter: Dictionary.com
13. firefighter: Cambridge Essential American English Dictionary
14. Firefighter (disambiguation), Firefighter (film), Firefighter: Wikipedia, the Free Encyclopedia
15. firefighter: Rhymezone
16. firefighter: FreeDictionary.org
17. firefighter: Mnemonic Dictionary
18. firefighter: TheFreeDictionary.com
19. firefighter: Longman Dictionary of Contemporary English

Computing (1 matching dictionary)

20. firefighter: Encyclopedia

Science (1 matching dictionary)

21. firefighter: LITTLE EXPLORERS(TM) Picture Dictionary

Slang (1 matching dictionary)

22. The firefighter: Urban Dictionary

(Note: See fire_fighting as well.)

Definitions from Wiktionary ( ) ▸ noun:  (firefighting) A person who has been trained to put out fires. Similar: fire fighter, fireman, wildfire-fighter, firetender, fighter, firewoman, engineer, chauffeur, fire watch, can man, more... Opposite: arsonist Types: wildland, aircraft, industrial, forest, volunteer, military, career, more... Phrases: Firefighter arson, 2002-2003 UK firefighter dispute, firefighter red, noted firefighter red, more... Adjectives: young, old, first, female, black, good, retired, former, wildland, professional, new Colors:     red,     yellow,     black,     silver,     white, more... ▸ Words similar to firefighter ▸ Usage examples for firefighter ▸ Idioms related to firefighter ▸ Wikipedia articles (New!) ▸ Popular adjectives describing firefighter ▸ Words that often appear near firefighter ▸ Rhymes of firefighter ▸ Invented words related to firefighter