We found 42 dictionaries that define the word warning:

General (26 matching dictionaries)

1. warning: Longman Dictionary of Contemporary English
2. warning: Merriam-Webster
3. warning: Oxford Learner's Dictionaries
4. warning: American Heritage Dictionary of the English Language
5. warning: Collins English Dictionary
6. warning: Vocabulary.com
7. Warning, warning: Wordnik
8. warning: Cambridge Advanced Learner's Dictionary
9. Warning, warning: Wiktionary
10. warning: Webster's New World College Dictionary, 4th Ed.
11. warning: The Wordsmyth English Dictionary-Thesaurus
12. warning: Infoplease Dictionary
13. warning: Dictionary.com
14. warning: Cambridge Essential American English Dictionary
15. The Warning (Eminem song), The Warning (Hot Chip album), The Warning (Mexican band), The Warning (novel), Warning (French band), Warning (German band), Warning (Green Day album), Warning (Green Day song), Warning (Incubus song), Warning (R. Stevie Moore album), Warning (Sunmi EP), Warning (The Notorious B.I.G. song), Warning (UK band), Warning (band), Warning (horse), Warning (traffic stop), Warning (upcoming film), Warning: Wikipedia, the Free Encyclopedia
16. Warning: Online Plain Text English Dictionary
17. warning: Webster's Revised Unabridged, 1913 Edition
18. warning: Rhymezone
19. Warning: AllWords.com Multi-Lingual Dictionary
20. warning: Webster's 1828 Dictionary
21. warning: FreeDictionary.org
22. warning: Mnemonic Dictionary
23. warning: TheFreeDictionary.com
24. warning: Wikimedia Commons US English Pronunciations

Business (2 matching dictionaries)

25. The warning, Warning (disambiguation), Warning (song), Warning, warning: Legal dictionary
26. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

27. The warning, Warning (disambiguation), Warning (song), Warning, warning: Encyclopedia

Miscellaneous (3 matching dictionaries)

28. Navajo Code Talkers' Dictionary (No longer online)
29. Encyclopedia of Graphic Symbols (No longer online)
30. warning: Idioms

Religion (1 matching dictionary)

31. Postmodern Bible Dictionary (No longer online)

Science (2 matching dictionaries)

32. Environmental Terminology Discovery Service (No longer online)
33. Weather Glossary (No longer online)

Slang (1 matching dictionary)

34. warning, warning: Urban Dictionary

Sports (1 matching dictionary)

35. Warning: Sports Definitions

Tech (5 matching dictionaries)

36. AUTOMOTIVE TERMS (No longer online)
37. DOD Dictionary of Military Terms (No longer online)
38. Glossary of Meteorology (No longer online)
39. National Weather Service Glossary (No longer online)
40. Dictionary for Avionics (No longer online)

(Note: See warn as well.)

Definitions from Wiktionary ( ) ▸ noun:  The action of the verb warn; an instance of warning someone. ▸ noun:  Something spoken or written that is intended to warn. ▸ noun:  A surname. Similar: admonition, monitory, cautionary, admonitory, dissuasive, exemplary, word of advice, forewarning, alerting, admonishing, more... Opposite: encouragement, assurance, endorsement, support, approval Types: explicit, implicit, direct, indirect, explicitly, implicitly, directly, indirectly, more... Phrases: the warning, early warning, warning signs, warning system, warning signal, more... Adjectives: early, fair, first, solemn, little, timely, stern, final, clear, sufficient, last Colors:     red,     yellow,     orange,     black,     white, more... ▸ Words similar to warning ▸ Usage examples for warning ▸ Idioms related to warning ▸ Wikipedia articles (New!) ▸ Popular adjectives describing warning ▸ Words that often appear near warning ▸ Rhymes of warning ▸ Invented words related to warning