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We found 57 dictionaries with English definitions that include the word hacker:
Click on the first link on a line below to go directly to a page where "hacker" is defined.

General (26 matching dictionaries)

1. hacker: Merriam-Webster.com [home, info]
2. hacker: Oxford Learner's Dictionaries [home, info]
3. hacker, hacker: American Heritage Dictionary of the English Language [home, info]
4. hacker: Collins English Dictionary [home, info]
5. hacker: Vocabulary.com [home, info]
6. Hacker, hacker: Wordnik [home, info]
7. hacker: Cambridge Advanced Learner's Dictionary [home, info]
8. hacker: Wiktionary [home, info]
9. hacker: Webster's New World College Dictionary, 4th Ed. [home, info]
10. hacker: The Wordsmyth English Dictionary-Thesaurus [home, info]
11. hacker: Infoplease Dictionary [home, info]
12. Hacker, hacker: Dictionary.com [home, info]
13. hacker: UltraLingua English Dictionary [home, info]
14. hacker: Cambridge Dictionary of American English [home, info]
15. Hacker (computer security), Hacker (computing), Hacker (disambiguation), Hacker (expert), Hacker (film), Hacker (hobbyist), Hacker (programmer subculture), Hacker (term), Hacker (video game), Hacker, The Hacker: Wikipedia, the Free Encyclopedia [home, info]
16. Hacker: Online Plain Text English Dictionary [home, info]
17. hacker: Webster's Revised Unabridged, 1913 Edition [home, info]
18. hacker: Rhymezone [home, info]
19. Hacker (m), hacker, hacker: AllWords.com Multi-Lingual Dictionary [home, info]
20. hacker: Mnemonic Dictionary [home, info]
21. hacker: WordNet 1.7 Vocabulary Helper [home, info]
22. Hacker, hacker: LookWAYup Translating Dictionary/Thesaurus [home, info]
23. hacker: Dictionary/thesaurus [home, info]
24. hacker: Free Dictionary [home, info]

Art (1 matching dictionary)

25. hacker: ODLIS: Online Dictionary of Library and Information Science [home, info]

Business (6 matching dictionaries)

26. hacker: Webster's New World Finance & Investment Dictionary [home, info]
27. Hacker: bizterms.net [home, info]
28. hacker: BuzzWhack [home, info]
29. Hacker: Glossary of Media Terms [home, info]
30. Hacker: Accounting, Business Studies and Economics Dictionary [home, info]
31. hacker: BusinessDictionary.com [home, info]

Computing (14 matching dictionaries)

32. hacker: Webster's New World Hacker Dictionary [home, info]
33. hacker: Free On-line Dictionary of Computing [home, info]
34. hacker: Netlingo [home, info]
35. hacker: CCI Computer [home, info]
36. hacker: Computer Telephony & Electronics Dictionary and Glossary [home, info]
37. hacker: Glossary of Internet Terms [home, info]
38. Hacker: Internet Terms [home, info]
39. Hacker, Hacker, Hacker: Internet Terms [home, info]
40. hacker: Webopedia [home, info]
41. hacker: Hacking Lexicon [home, info]
42. hacker: I T Glossary [home, info]
43. Hacker: Technopedia [home, info]
44. Hacker (computer expert), hacker: Encyclopedia [home, info]
45. Hacker: Tech Terms Computer Dictionary [home, info]

Medicine (1 matching dictionary)

46. hacker: online medical dictionary [home, info]

Miscellaneous (3 matching dictionaries)

47. HACKER, HACKER: Terminology and Descriptions of Geneaological Words [home, info]
48. hacker: A Word A Day [home, info]
49. HACKER: Terminology and Descriptions of Geneaological Words [home, info]

Science (1 matching dictionary)

50. hacker: FOLDOP - Free On Line Dictionary Of Philosophy [home, info]

Slang (1 matching dictionary)

51. hacker: Urban Dictionary [home, info]

Sports (2 matching dictionaries)

52. hacker: Hickok Sports Glossaries [home, info]
53. hacker: Golfer's Dictionary [home, info]

Tech (2 matching dictionaries)

54. hacker: Webster's New World Telecom Dictionary [home, info]
55. HACKER: Space and Electronic Warfare Lexicon [home, info]

(Note: See hackers for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (hacker) ▸ noun:  a programmer for whom computing is its own reward; may enjoy the challenge of breaking into other computers but does no harm ("True hackers subscribe to a code of ethics and look down upon crackers") ▸ noun:  someone who plays golf poorly ▸ noun:  a programmer who breaks into computer systems in order to steal or change or destroy information as a form of cyber-terrorism ▸ noun:  one who works hard at boring tasks ▸ name:  A surname (common: 1 in 20000 families; popularity rank in the U.S.: #2313) ▸ Also see hackers ▸ Words similar to hacker ▸ Usage examples for hacker ▸ Idioms related to hacker (New!) ▸ Popular adjectives describing hacker ▸ Words that often appear near hacker ▸ Rhymes of hacker ▸ Invented words related to hacker