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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 (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 (1 matching dictionary)

30. certain: The Organon: A Conceptually Indexed Dictionary (by Genus and Differentia) [home, info]

Business (1 matching dictionary)

31. certain: Legal dictionary [home, info]

Computing (1 matching dictionary)

32. certain: Encyclopedia [home, info]

Medicine (1 matching dictionary)

33. certain: Medical dictionary [home, info]

Miscellaneous (2 matching dictionaries)

34. CERTAIN: Acronym Finder [home, info]
35. certain: Idioms [home, info]

(Note: See certains for more definitions.)

Quick definitions from Macmillan ( ) Provided by 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) ▸ Also see certains ▸ Word origin ▸ Words similar to certain ▸ Usage examples for certain ▸ Idioms related to certain (New!) ▸ Popular nouns described by certain ▸ Words that often appear near certain ▸ Rhymes of certain ▸ Invented words related to certain