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We found 64 dictionaries with English definitions that include the word peak:
Click on the first link on a line below to go directly to a page where "peak" is defined.

General (32 matching dictionaries)

1. peak: Merriam-Webster.com [home, info]
2. peak, peak, peak: Oxford Dictionaries [home, info]
3. peak, peak: American Heritage Dictionary of the English Language [home, info]
4. peak: Collins English Dictionary [home, info]
5. peak: Vocabulary.com [home, info]
6. peak, peak, peak: Macmillan Dictionary [home, info]
7. Peak, peak: Wordnik [home, info]
8. peak: Cambridge Advanced Learner's Dictionary [home, info]
9. Peak: InfoVisual Visual Dictionary [home, info]
10. Peak: Wiktionary [home, info]
11. peak: Webster's New World College Dictionary, 4th Ed. [home, info]
12. peak: The Wordsmyth English Dictionary-Thesaurus [home, info]
13. peak: Infoplease Dictionary [home, info]
14. peak: Dictionary.com [home, info]
15. peak: Online Etymology Dictionary [home, info]
16. Peak, peak: UltraLingua English Dictionary [home, info]
17. peak: Cambridge Dictionary of American English [home, info]
18. PEAK (automotive products), Peak (constituency), Peak (geometry), Peak (novel), Peak (pharmacology), Peak (topography), Peak, The Peak (Hong Kong), The Peak (Peak Tram), The Peak (TV series), The Peak (newspaper), The peak: Wikipedia, the Free Encyclopedia [home, info]
19. Peak: Online Plain Text English Dictionary [home, info]
20. peak: Webster's Revised Unabridged, 1913 Edition [home, info]
21. peak: Rhymezone [home, info]
22. peak: AllWords.com Multi-Lingual Dictionary [home, info]
23. peak: Webster's 1828 Dictionary [home, info]
24. peak: All About Homonyms [home, info]
25. The Peak: 1911 edition of the Encyclopedia Britannica [home, info]
26. peak: Free Dictionary [home, info]
27. peak: Mnemonic Dictionary [home, info]
28. peak: WordNet 1.7 Vocabulary Helper [home, info]
29. Peak, peak: LookWAYup Translating Dictionary/Thesaurus [home, info]
30. peak: Dictionary/thesaurus [home, info]

Art (3 matching dictionaries)

31. Peak: Epicurus.com Wine Glossary [home, info]
32. peak: Literary Criticism [home, info]
33. Peak (P): Glossary of Stamp Collecting Terms [home, info]

Business (13 matching dictionaries)

34. Peak: MoneyGlossary.com [home, info]
35. peak: INVESTORWORDS [home, info]
36. PEAK: Accounting Glossary [home, info]
37. Peak: bizterms.net [home, info]
38. Peak: Bloomberg Financial Glossary [home, info]
39. Peak: Construction Term Glossary [home, info]
40. Peak: FACS Journalist's Guide to Economic Terms [home, info]
41. Peak: Deardorff's Glossary of International Economics [home, info]
42. Peak: Investopedia [home, info]
43. Peak (disambiguation), peak: Legal dictionary [home, info]
44. Peak (disambiguation), Peak: Financial dictionary [home, info]
45. Peak: Accounting, Business Studies and Economics Dictionary [home, info]
46. peak: BusinessDictionary.com [home, info]

Computing (1 matching dictionary)

47. Peak (disambiguation), peak: Encyclopedia [home, info]

Medicine (3 matching dictionaries)

48. peak: Sound Alike Words [home, info]
49. peak: online medical dictionary [home, info]
50. Peak (disambiguation), peak: Medical dictionary [home, info]

Miscellaneous (3 matching dictionaries)

51. peak: Sound-Alike Words [home, info]
52. PEAK: Acronym Finder [home, info]
53. PEAK: AbbreviationZ [home, info]

Slang (1 matching dictionary)

54. peak, the peak: Urban Dictionary [home, info]

Sports (3 matching dictionaries)

55. Peak: Body Building [home, info]
56. peak: Glossary of Hiking Terms [home, info]
57. Peak: Sports Definitions [home, info]

Tech (5 matching dictionaries)

58. peak: Electronics [home, info]
59. peak: Schlumberger Oilfield Glossary [home, info]
60. peak: SeaTalk Dictionary of English Nautical Language [home, info]
61. Peak: Sweetwater Music [home, info]
62. Peak, Peak: Latitude Mexico [home, info]

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (peak) ▸ noun:  the top point of a mountain or hill ("The view from the peak was magnificent") ▸ noun:  a brim that projects to the front to shade the eyes ▸ noun:  the highest point (of something) ("At the peak of the pyramid") ▸ noun:  the most extreme possible amount or value ("Voltage peak") ▸ noun:  a V shape ▸ noun:  the period of greatest prosperity or productivity ▸ noun:  the highest level or degree attainable ("The peak of perfection") ▸ verb:  to reach the highest point; attain maximum intensity, activity ("That wild, speculative spirit peaked in 1929") ▸ adjective:  of a period of maximal use or demand or activity ("At peak hours the streets traffic is unbelievable") ▸ name:  A surname (rare: 1 in 25000 families; popularity rank in the U.S.: #3004) ▸ Word origin ▸ Words similar to peak ▸ Usage examples for peak ▸ Popular adjectives describing peak ▸ Popular nouns described by peak ▸ Words that often appear near peak ▸ Rhymes of peak ▸ Invented words related to peak