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We found 56 dictionaries with English definitions that include the word sleeper:
Click on the first link on a line below to go directly to a page where "sleeper" is defined.

General (33 matching dictionaries)

1. sleeper: Merriam-Webster.com [home, info]
2. sleeper: Oxford Learner's Dictionaries [home, info]
3. sleeper: American Heritage Dictionary of the English Language [home, info]
4. sleeper: Collins English Dictionary [home, info]
5. sleeper: Vocabulary.com [home, info]
6. sleeper: Macmillan Dictionary [home, info]
7. Sleeper, sleeper: Wordnik [home, info]
8. sleeper: Cambridge Advanced Learner's Dictionary [home, info]
9. Sleeper, sleeper: Wiktionary [home, info]
10. sleeper: Webster's New World College Dictionary, 4th Ed. [home, info]
11. sleeper: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. sleeper: Infoplease Dictionary [home, info]
13. sleeper: Dictionary.com [home, info]
14. sleeper: Online Etymology Dictionary [home, info]
15. sleeper: UltraLingua English Dictionary [home, info]
16. sleeper: Cambridge Dictionary of American English [home, info]
17. Sleeper (Buffy the Vampire Slayer), Sleeper (Godstar album), Sleeper (Keith Jarrett album), Sleeper (Marvel Comics), Sleeper (Modern Family), Sleeper (Torchwood), Sleeper (Tribe album), Sleeper (Ty Segall album), Sleeper (band), Sleeper (car), Sleeper (comic book), Sleeper (comics), Sleeper (disambiguation), Sleeper (espionage), Sleeper (film), Sleeper (rail), Sleeper (symbiote), Sleeper (tie), Sleeper (yo-yo trick), Sleeper, The Sleeper (The Leisure Society album), The Sleeper (album): Wikipedia, the Free Encyclopedia [home, info]
18. Sleeper: Online Plain Text English Dictionary [home, info]
19. sleeper: Webster's Revised Unabridged, 1913 Edition [home, info]
20. sleeper: Rhymezone [home, info]
21. Sleeper: AllWords.com Multi-Lingual Dictionary [home, info]
22. sleeper: Webster's 1828 Dictionary [home, info]
23. Sleeper (rail): Britih-American Dictionary [home, info]
24. Sleeper: E Cobham Brewer, The Reader's Handbook [home, info]
25. Sleeper: Dictionary of Phrase and Fable (1898) [home, info]
26. Sleeper: 1911 edition of the Encyclopedia Britannica [home, info]
27. sleeper: Free Dictionary [home, info]
28. sleeper: Mnemonic Dictionary [home, info]
29. sleeper: WordNet 1.7 Vocabulary Helper [home, info]
30. Sleeper, sleeper: LookWAYup Translating Dictionary/Thesaurus [home, info]
31. sleeper: Dictionary/thesaurus [home, info]

Art (3 matching dictionaries)

32. Sleeper: Movie Terminology Glossary [home, info]
33. Sleeper: Glossary of Stamp Collecting Terms [home, info]
34. sleeper: ODLIS: Online Dictionary of Library and Information Science [home, info]

Business (9 matching dictionaries)

35. Sleeper: MoneyGlossary.com [home, info]
36. sleeper: Travel Industry Dictionary [home, info]
37. sleeper: INVESTORWORDS [home, info]
38. Sleeper: eyefortransport e-commerce transportation glossary [home, info]
39. Sleeper: Financial dictionary [home, info]
40. Sleeper: Glossary of Trucking Terms [home, info]
41. sleeper: BusinessDictionary.com [home, info]
42. Sleeper: Bloomberg Financial Glossary [home, info]
43. Sleeper: Construction Term Glossary [home, info]

Computing (1 matching dictionary)

44. sleeper: Encyclopedia [home, info]

Medicine (1 matching dictionary)

45. sleeper: online medical dictionary [home, info]

Miscellaneous (1 matching dictionary)

46. Sleeper: Castle Terms [home, info]

Slang (2 matching dictionaries)

47. Sleeper: Street Terms: Drugs and the Drug Trade [home, info]
48. Sleeper (Girlfriend), The Sleeper: Urban Dictionary [home, info]

Sports (3 matching dictionaries)

49. sleeper: Sports Terms [home, info]
50. sleeper: Hickok Sports Glossaries [home, info]
51. Sleeper: 2060 Shadow-Slang [home, info]

Tech (3 matching dictionaries)

52. Sleeper: AUTOMOTIVE TERMS [home, info]
53. sleeper: Glossary of Meteorology [home, info]
54. Sleeper: Construction Glossary [home, info]

(Note: See sleepers for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (sleeper) ▸ noun:  an unexpected hit ("That movie was the sleeper of the summer") ▸ noun:  tropical fish that resembles a goby and rests quietly on the bottom in shallow water ▸ noun:  a piece of furniture that can be opened up into a bed ▸ noun:  a rester who is sleeping ▸ noun:  an unexpected achiever of success ("The winner was a true sleeper--no one expected him to get it") ▸ noun:  a spy or saboteur or terrorist planted in an enemy country who lives there as a law-abiding citizen until activated by a prearranged signal ▸ noun:  a passenger car that has berths for sleeping ▸ noun:  one of the cross braces that support the rails on a railway track ("The British call a railroad tie a sleeper") ▸ name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #9631) ▸ Also see sleepers ▸ Word origin ▸ Words similar to sleeper ▸ Usage examples for sleeper ▸ Idioms related to sleeper (New!) ▸ Popular adjectives describing sleeper ▸ Words that often appear near sleeper ▸ Rhymes of sleeper ▸ Invented words related to sleeper