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We found 59 dictionaries with English definitions that include the word effect:
Click on the first link on a line below to go directly to a page where "effect" is defined.

General (35 matching dictionaries)

1. effect: Merriam-Webster.com [home, info]
2. effect: Oxford Learner's Dictionaries [home, info]
3. effect: American Heritage Dictionary of the English Language [home, info]
4. effect: Collins English Dictionary [home, info]
5. effect: Vocabulary.com [home, info]
6. effect, effect: Macmillan Dictionary [home, info]
7. Effect, effect: Wordnik [home, info]
8. effect: Cambridge Advanced Learner's Dictionary [home, info]
9. effect: Wiktionary [home, info]
10. effect: The Wordsmyth English Dictionary-Thesaurus [home, info]
11. effect: Infoplease Dictionary [home, info]
12. effect: Dictionary.com [home, info]
13. effect (n.): Online Etymology Dictionary [home, info]
14. effect: UltraLingua English Dictionary [home, info]
15. effect: Cambridge Dictionary of American English [home, info]
16. effect: Cambridge International Dictionary of Idioms [home, info]
17. Effect, The Effect: Wikipedia, the Free Encyclopedia [home, info]
18. Effect: Online Plain Text English Dictionary [home, info]
19. effect: Webster's Revised Unabridged, 1913 Edition [home, info]
20. effect: Rhymezone [home, info]
21. effect: AllWords.com Multi-Lingual Dictionary [home, info]
22. effect: Webster's 1828 Dictionary [home, info]
23. effect: All About Homonyms [home, info]
24. effect: Hutchinson's Dictionary of Difficult Words [home, info]
25. effect: Free Dictionary [home, info]
26. effect, effect: Hutchinson Dictionaries [home, info]
27. effect: Mnemonic Dictionary [home, info]
28. effect: WordNet 1.7 Vocabulary Helper [home, info]
29. effect: LookWAYup Translating Dictionary/Thesaurus [home, info]
30. effect: Dictionary/thesaurus [home, info]
31. Effect: UVic Writer's Guide [home, info]
32. effect: Wikimedia Commons US English Pronunciations [home, info]
33. effect: Webster's New World College Dictionary, 4th Ed. [home, info]

Art (3 matching dictionaries)

34. effect: Dictionary of Philosophical Terms and Names [home, info]
35. effect: The Organon: A Conceptually Indexed Dictionary (by Genus and Differentia) [home, info]
36. effect: Literary Criticism [home, info]

Business (3 matching dictionaries)

37. effect: Glossary of Legal Terms [home, info]
38. EFFECT: Bouvier's Law Dictionary 1856 Edition [home, info]
39. effect: Legal dictionary [home, info]

Computing (1 matching dictionary)

40. effect: Encyclopedia [home, info]

Medicine (3 matching dictionaries)

41. effect: Sound Alike Words [home, info]
42. effect: online medical dictionary [home, info]
43. effect: Medical dictionary [home, info]

Miscellaneous (6 matching dictionaries)

44. effect: Encyclopedia of Graphic Symbols [home, info]
45. effect: Sound-Alike Words [home, info]
46. EFFECT: Acronym Finder [home, info]
47. effect: A Brief Critical Dictionary of Education [home, info]
48. EFFECT: AbbreviationZ [home, info]
49. effect: Idioms [home, info]

Religion (2 matching dictionaries)

50. effect: Scientology® and Dianetics® [home, info]
51. EFFECT: Glossary of Biblical English of the Authorised Version of the HOLY BIBLE [home, info]

Science (3 matching dictionaries)

52. Effect: Eric Weisstein's World of Physics [home, info]
53. -effect: PHYSICAL ORGANIC CHEMISTRY [home, info]
54. effect: FOLDOP - Free On Line Dictionary Of Philosophy [home, info]

Slang (1 matching dictionary)

55. The Effect, effect: Urban Dictionary [home, info]

Tech (2 matching dictionaries)

56. Effect: AUTOMOTIVE TERMS [home, info]
57. effect: DOD Dictionary of Military Terms [home, info]

(Note: See effects for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (effect) ▸ noun:  (of a law) having legal validity ("The law is still in effect") ▸ noun:  an impression (especially one that is artificial or contrived) ("He just did it for effect") ▸ noun:  the central meaning or theme of a speech or literary work ▸ noun:  a symptom caused by an illness or a drug ("The effects of sleep loss") ▸ noun:  an outward appearance ("She retained that bold effect in her reproductions of the original painting") ▸ noun:  a phenomenon that follows and is caused by some previous phenomenon ("The magnetic effect was greater when the rod was lengthwise") ▸ verb:  act so as to bring into existence ("Effect a change") ▸ verb:  produce ▸ Also see effects ▸ Word origin ▸ Words similar to effect ▸ Usage examples for effect ▸ Idioms related to effect (New!) ▸ Popular adjectives describing effect ▸ Words that often appear near effect ▸ Rhymes of effect ▸ Invented words related to effect