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We found 37 dictionaries with English definitions that include the word certain:
Click on the first link on a line below to go directly to a page where "certain" is defined.

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

Art dictionaries Art (1 matching dictionary)
  1. certain: The Organon: A Conceptually Indexed Dictionary (by Genus and Differentia) [home, info]

Business dictionaries Business (1 matching dictionary)
  1. certain: Legal dictionary [home, info]

Computing dictionaries Computing (1 matching dictionary)
  1. certain: Encyclopedia [home, info]

Medicine dictionaries Medicine (1 matching dictionary)
  1. certain: Medical dictionary [home, info]

Miscellaneous dictionaries Miscellaneous (2 matching dictionaries)
  1. CERTAIN: Acronym Finder [home, info]
  2. certain: Idioms [home, info]

(Note: See certains for more definitions.)

Quick definitions from Macmillan (
American English Definition British English Definition

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Quick definitions from WordNet (certain)

adjective:  exercising or taking care great enough to bring assurance ("Be certain to disconnect the iron when you are through")
adjective:  certain to occur; destined or inevitable ("He was certain to fail")
adjective:  capable of being depended on ("A quick and certain remedy")
adjective:  established irrevocably
name:  A surname (very rare: popularity rank in the U.S.: #20995)

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Phrases that include certain:   a certain, makes certain, of a certain age, to a certain extent, under certain circumstances, more...

Words similar to certain:   sure, sealed, definite, more...

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