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We found 28 dictionaries with English definitions that include the word blue moon:
Click on the first link on a line below to go directly to a page where "blue moon" is defined.

General (22 matching dictionaries)

1. blue moon: Merriam-Webster.com [home, info]
2. blue moon: American Heritage Dictionary of the English Language [home, info]
3. blue moon: Collins English Dictionary [home, info]
4. blue moon: Vocabulary.com [home, info]
5. blue moon: Wordnik [home, info]
6. blue moon: Wiktionary [home, info]
7. blue moon: Infoplease Dictionary [home, info]
8. blue moon: Dictionary.com [home, info]
9. blue moon: Online Etymology Dictionary [home, info]
10. blue moon: UltraLingua English Dictionary [home, info]
11. Blue Moon (Beck song), Blue Moon (Carmen McRae album), Blue Moon (Child novel), Blue Moon (Hamilton novel), Blue Moon (Noel novel), Blue Moon (Steve Holy album), Blue Moon (Steve Holy song), Blue Moon (The Marcels album), Blue Moon (Toby Keith album), Blue Moon (beer), Blue Moon (disambiguation), Blue Moon (game), Blue Moon (ice cream), Blue Moon (song), Blue Moon (spacecraft), Blue Moon, Blue moon (ice cream), Blue moon, The Blue_Moon (film), The Blue_Moon (musical): Wikipedia, the Free Encyclopedia [home, info]
12. blue moon: Rhymezone [home, info]
13. Blue Moon: E Cobham Brewer, The Reader's Handbook [home, info]
14. Blue Moon: Stammtisch Beau Fleuve Acronyms [home, info]
15. Blue Moon: Dictionary of Phrase and Fable (1898) [home, info]
16. blue moon: Free Dictionary [home, info]
17. blue moon: Mnemonic Dictionary [home, info]
18. blue moon: WordNet 1.7 Vocabulary Helper [home, info]
19. blue moon: LookWAYup Translating Dictionary/Thesaurus [home, info]
20. Blue Moon: The Word Detective [home, info]
21. blue moon: Dictionary/thesaurus [home, info]
22. Blue moon: World Wide Words [home, info]

Miscellaneous (1 matching dictionary)

23. Blue Moon: AbbreviationZ [home, info]

Science (2 matching dictionaries)

24. Blue Moon: Eric Weisstein's World of Astronomy [home, info]
25. BLUE MOON: Zoom Astronomy Glossary [home, info]

Sports (1 matching dictionary)

26. Blue Moon: 2060 Shadow-Slang [home, info]

Tech (2 matching dictionaries)

27. blue moon: Glossary of Meteorology [home, info]
28. blue moon: Rane Professional Audio Reference [home, info]

(Note: See blue_moons for more definitions.)

Quick definitions from WordNet (blue moon) ▸ noun:  a long time ("Something that happens once in blue moon almost never happens") ▸ Also see blue_moons ▸ Word origin ▸ Words similar to blue moon ▸ Usage examples for blue moon ▸ Idioms related to blue moon (New!) ▸ Words that often appear near blue moon ▸ Rhymes of blue moon ▸ Invented words related to blue moon