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We found 48 dictionaries with English definitions that include the word reef:
Click on the first link on a line below to go directly to a page where "reef" is defined.

General (34 matching dictionaries)

1. reef: Merriam-Webster.com [home, info]
2. reef, reef: Oxford Learner's Dictionaries [home, info]
3. reef, reef: American Heritage Dictionary of the English Language [home, info]
4. reef, the Reef: Collins English Dictionary [home, info]
5. Reef, reef: Vocabulary.com [home, info]
6. reef: Macmillan Dictionary [home, info]
7. Reef, reef: Wordnik [home, info]
8. reef: Cambridge Advanced Learner's Dictionary [home, info]
9. reef: Wiktionary [home, info]
10. reef: Webster's New World College Dictionary, 4th Ed. [home, info]
11. reef: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. reef: Infoplease Dictionary [home, info]
13. reef: Dictionary.com [home, info]
14. reef (1), reef (2): Online Etymology Dictionary [home, info]
15. reef: UltraLingua English Dictionary [home, info]
16. reef: Cambridge Dictionary of American English [home, info]
17. Reef (band), Reef (company), Reef (disambiguation), Reef (novel), Reef, The Reef (disambiguation), The Reef (novel), The Reef: Wikipedia, the Free Encyclopedia [home, info]
18. Reef: Online Plain Text English Dictionary [home, info]
19. reef: Webster's Revised Unabridged, 1913 Edition [home, info]
20. reef: Rhymezone [home, info]
21. reef, reef: AllWords.com Multi-Lingual Dictionary [home, info]
22. reef: Webster's 1828 Dictionary [home, info]
23. Reef: Dictionary of Phrase and Fable (1898) [home, info]
24. reef: Double-Tongued Word Wrester [home, info]
25. Reef: 1911 edition of the Encyclopedia Britannica [home, info]
26. reef: Free Dictionary [home, info]
27. reef: The Phrontistery - A Dictionary of Obscure Words [home, info]
28. reef: Mnemonic Dictionary [home, info]
29. reef: WordNet 1.7 Vocabulary Helper [home, info]
30. Reef, reef: LookWAYup Translating Dictionary/Thesaurus [home, info]
31. reef: Dictionary/thesaurus [home, info]
32. reef: Wikimedia Commons US English Pronunciations [home, info]

Computing (1 matching dictionary)

33. reef: Encyclopedia [home, info]

Medicine (2 matching dictionaries)

34. reef: online medical dictionary [home, info]
35. Reef (knot), Reef (sail), reef: Medical dictionary [home, info]

Miscellaneous (4 matching dictionaries)

36. REEF: Navajo Code Talkers' Dictionary [home, info]
37. Reef: Brilliant Dream Dictionary [home, info]
38. REEF: Acronym Finder [home, info]
39. Reef: Idioms [home, info]

Science (1 matching dictionary)

40. reef: Natural History Terms [home, info]

Slang (2 matching dictionaries)

41. Reef: Dublin Slang and Phrasebook [home, info]
42. reef: Urban Dictionary [home, info]

Tech (4 matching dictionaries)

43. REEF: Lake and Water Word Glossary [home, info]
44. reef: Schlumberger Oilfield Glossary [home, info]
45. reef: SeaTalk Dictionary of English Nautical Language [home, info]
46. REEF: Sandahl, Middle English Sea Terms [home, info]

(Note: See reefy for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (reef) ▸ noun:  a submerged ridge of rock or coral near the surface of the water ▸ noun:  a rocky region in the southern Transvaal in northeastern South Africa; contains rich gold deposits and coal and manganese ▸ verb:  reduce (a sail) by taking in a reef ▸ verb:  roll up (a portion of a sail) in order to reduce its area ▸ verb:  lower and bring partially inboard ("Reef the sailboat's mast") ▸ name:  A surname (very rare: popularity rank in the U.S.: #31274) ▸ Also see reefy ▸ Word origin ▸ Words similar to reef ▸ Usage examples for reef ▸ Idioms related to reef (New!) ▸ Popular adjectives describing reef ▸ Words that often appear near reef ▸ Rhymes of reef ▸ Invented words related to reef