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We found 58 dictionaries with English definitions that include the word cool:
Click on the first link on a line below to go directly to a page where "cool" is defined.

General (35 matching dictionaries)

1. cool, the cool: Merriam-Webster.com [home, info]
2. cool, the cool: Oxford Learner's Dictionaries [home, info]
3. cool: American Heritage Dictionary of the English Language [home, info]
4. cool: Collins English Dictionary [home, info]
5. cool: Vocabulary.com [home, info]
6. cool, cool, cool: Macmillan Dictionary [home, info]
7. Cool, cool: Wordnik [home, info]
8. cool, the cool: Cambridge Advanced Learner's Dictionary [home, info]
9. COOL, Cool, cool: Wiktionary [home, info]
10. cool: Webster's New World College Dictionary, 4th Ed. [home, info]
11. cool: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. cool: Infoplease Dictionary [home, info]
13. cool: Dictionary.com [home, info]
14. cool: Online Etymology Dictionary [home, info]
15. Cool, cool: UltraLingua English Dictionary [home, info]
16. cool: Cambridge Dictionary of American English [home, info]
17. cool: Cambridge International Dictionary of Idioms [home, info]
18. Cool (African aesthetic), Cool (Alesso song), Cool (Anthony Hamilton song), Cool (Dua Lipa song), Cool (George Duke album), Cool (Gwen Stefani song), Cool (Jonas Brothers song), Cool (Rotterdam), Cool (South Korean band), Cool (The Time song), Cool (West Side Story song), Cool (aesthetic), Cool (band), Cool (district of Rotterdam), Cool (programming language), Cool, The Cool (character), The Cool: Wikipedia, the Free Encyclopedia [home, info]
19. cool: Cambridge International Dictionary of Phrasal Verbs [home, info]
20. Cool: Online Plain Text English Dictionary [home, info]
21. cool: Webster's Revised Unabridged, 1913 Edition [home, info]
22. cool: Rhymezone [home, info]
23. cool: AllWords.com Multi-Lingual Dictionary [home, info]
24. cool: Webster's 1828 Dictionary [home, info]
25. COOL: Dictionary of Americanisms (1848) [home, info]
26. cool: Free Dictionary [home, info]
27. cool: ESL Idiom Page [home, info]
28. cool: Mnemonic Dictionary [home, info]
29. cool: WordNet 1.7 Vocabulary Helper [home, info]
30. Cool, cool: LookWAYup Translating Dictionary/Thesaurus [home, info]
31. Cool: The Word Detective [home, info]
32. cool: Dictionary/thesaurus [home, info]
33. Cool: World Wide Words [home, info]

Art (2 matching dictionaries)

34. Cool: Health & Beauty Glossary [home, info]
35. Cool: Jazz Humor [home, info]

Business (2 matching dictionaries)

36. cool: Glossary of Legal Terms [home, info]
37. Cool (aesthetic), Cool (disambiguation), cool: Legal dictionary [home, info]

Computing (4 matching dictionaries)

38. COOL, CooL: Free On-line Dictionary of Computing [home, info]
39. Cool: The Microsoft Lexicon [home, info]
40. Cool (disambiguation), cool: Encyclopedia [home, info]
41. Cool: Windows API Guide [home, info]

Medicine (2 matching dictionaries)

42. COOL, CooL: online medical dictionary [home, info]
43. cool: Medical dictionary [home, info]

Miscellaneous (3 matching dictionaries)

44. COOL: Acronym Finder [home, info]
45. COOL: AbbreviationZ [home, info]
46. cool: Idioms [home, info]

Slang (7 matching dictionaries)

47. cool (!): English slang and colloquialisms used in the United Kingdom [home, info]
48. Cool: Totally Unofficial Rap [home, info]
49. cool: American-Australian Slang Dictionary [home, info]
50. Cool: 1960's Slang [home, info]
51. C.O.O.L, CO.OL, Cool: Urban Dictionary [home, info]
52. Cool: Twists, Slugs and Roscoes: Hardboiled Slang [home, info]
53. cool: ESL Slang page [home, info]

Tech (3 matching dictionaries)

54. Cool: Beauty & Health Glossary [home, info]
55. Cool: PhotoNotes Dictionary of Film and Digital Photography [home, info]
56. Cool: Sweetwater Music [home, info]

(Note: See cooly for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (cool) ▸ noun:  the quality of being cool ("The cool of early morning") ▸ noun:  great coolness and composure under strain ("Keep your cool") ▸ verb:  loose heat ("The air cooled considerably after the thunderstorm") ▸ verb:  lose intensity ("His enthusiasm cooled considerably") ▸ verb:  make cool or cooler ▸ adjective:  used of a number or sum and meaning without exaggeration or qualification ("A cool million bucks") ▸ adjective:  neither warm or very cold; giving relief from heat ("A cool autumn day") ▸ adjective:  psychologically cool and unenthusiastic; unfriendly or unresponsive or showing dislike ("Relations were cool and polite") ▸ adjective:  (color) inducing the impression of coolness; used especially of greens and blues and violets ("Cool greens and blues and violets") ▸ adjective:  marked by calm self-control (especially in trying circumstances); unemotional ("Play it cool") ▸ adjective:  fashionable and attractive at the time; often skilled or socially adept ("He's a cool dude") ▸ name:  A surname (rare: 1 in 50000 families; popularity rank in the U.S.: #6327) ▸ Also see cooly ▸ Word origin ▸ Words similar to cool ▸ Usage examples for cool ▸ Idioms related to cool (New!) ▸ Popular adjectives describing cool ▸ Popular nouns described by cool ▸ Words that often appear near cool ▸ Rhymes of cool ▸ Invented words related to cool