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We found 47 dictionaries with English definitions that include the word challenge:
Click on the first link on a line below to go directly to a page where "challenge" is defined.

General (31 matching dictionaries)

1. challenge: Merriam-Webster.com [home, info]
2. challenge: Oxford Learner's Dictionaries [home, info]
3. challenge: American Heritage Dictionary of the English Language [home, info]
4. challenge: Collins English Dictionary [home, info]
5. challenge: Vocabulary.com [home, info]
6. challenge, challenge: Macmillan Dictionary [home, info]
7. Challenge, challenge: Wordnik [home, info]
8. challenge: Cambridge Advanced Learner's Dictionary [home, info]
9. challenge: Wiktionary [home, info]
10. challenge: Webster's New World College Dictionary, 4th Ed. [home, info]
11. challenge: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. challenge: Infoplease Dictionary [home, info]
13. challenge: Dictionary.com [home, info]
14. challenge: Online Etymology Dictionary [home, info]
15. challenge: UltraLingua English Dictionary [home, info]
16. challenge: Cambridge Dictionary of American English [home, info]
17. Challenge (Communist journal), Challenge (Internet), Challenge (NFL), Challenge (Scrabble), Challenge (TV channel), Challenge (Telugu film), Challenge (album), Challenge (competition), Challenge (economics magazine), Challenge (game magazine), Challenge (literature), Challenge (rhetoric), Challenge, The Challenge (TV series), The Challenge (album), The Challenge (miniseries), The Challenge: Wikipedia, the Free Encyclopedia [home, info]
18. Challenge: Online Plain Text English Dictionary [home, info]
19. challenge: Webster's Revised Unabridged, 1913 Edition [home, info]
20. challenge: Rhymezone [home, info]
21. challenge: AllWords.com Multi-Lingual Dictionary [home, info]
22. challenge: Webster's 1828 Dictionary [home, info]
23. Challenge: 1911 edition of the Encyclopedia Britannica [home, info]
24. challenge: Free Dictionary [home, info]
25. challenge: Mnemonic Dictionary [home, info]
26. challenge: WordNet 1.7 Vocabulary Helper [home, info]
27. challenge: LookWAYup Translating Dictionary/Thesaurus [home, info]
28. challenge: Dictionary/thesaurus [home, info]
29. Challenge (novel): Wikipedia, the Free Encyclopedia [home, info]

Art (1 matching dictionary)

30. challenge: ODLIS: Online Dictionary of Library and Information Science [home, info]

Business (7 matching dictionaries)

31. challenge: Webster's New World Law Dictionary [home, info]
32. challenge: Law.com Dictionary [home, info]
33. challenge: Everybody's Legal Dictionary [home, info]
34. Challenge: THE 'LECTRIC LAW LIBRARY'S REFERENCE ROOM [home, info]
35. challenge: Glossary of Legal Terms [home, info]
36. CHALLENGE: Bouvier's Law Dictionary 1856 Edition [home, info]
37. Challenge (television channel), Challenge, challenge: Legal dictionary [home, info]

Computing (2 matching dictionaries)

38. challenge: Hacking Lexicon [home, info]
39. Challenge (television channel), Challenge, challenge: Encyclopedia [home, info]

Medicine (2 matching dictionaries)

40. challenge: Glossary of HIV/AIDS Related Terms [home, info]
41. Challenge (television channel), Challenge, challenge: Medical dictionary [home, info]

Miscellaneous (2 matching dictionaries)

42. Challenge: Arms and Armour [home, info]
43. challenge: Idioms [home, info]

Religion (1 matching dictionary)

44. CHALLENGE: Glossary of Biblical English of the Authorised Version of the HOLY BIBLE [home, info]

Slang (1 matching dictionary)

45. The Challenge, challenge: Urban Dictionary [home, info]

(Note: See challenging for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (challenge) ▸ noun:  a demand by a sentry for a password or identification ▸ noun:  questioning a statement and demanding an explanation ("His challenge of the assumption that Japan is still our enemy") ▸ noun:  a formal objection to the selection of a particular person as a juror ▸ noun:  a call to engage in a contest or fight ▸ noun:  a demanding or stimulating situation ("They reacted irrationally to the challenge of Russian power") ▸ verb:  raise a formal objection in a court of law ▸ verb:  ask for identification ("The illegal immigrant was challenged by the border guard") ▸ verb:  issue a challenge to ("Fischer challenged Spassky to a match") ▸ verb:  take exception to ("She challenged his claims") ▸ Also see challenging ▸ Word origin ▸ Words similar to challenge ▸ Usage examples for challenge ▸ Idioms related to challenge (New!) ▸ Popular adjectives describing challenge ▸ Words that often appear near challenge ▸ Rhymes of challenge ▸ Invented words related to challenge