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We found 43 dictionaries with English definitions that include the word tautology:
Click on the first link on a line below to go directly to a page where "tautology" is defined.

General dictionaries General (28 matching dictionaries)
  1. tautology: Oxford Dictionaries [home, info]
  2. tautology: American Heritage Dictionary of the English Language [home, info]
  3. tautology: Collins English Dictionary [home, info]
  4. tautology: Vocabulary.com [home, info]
  5. tautology: Macmillan Dictionary [home, info]
  6. tautology: Merriam-Webster's Online Dictionary, 11th Edition [home, info]
  7. tautology: Cambridge Advanced Learner's Dictionary [home, info]
  8. Tautology: Wiktionary [home, info]
  9. tautology: Webster's New World College Dictionary, 4th Ed. [home, info]
  10. tautology: The Wordsmyth English Dictionary-Thesaurus [home, info]
  11. tautology: Infoplease Dictionary [home, info]
  12. tautology: Dictionary.com [home, info]
  13. tautology: Online Etymology Dictionary [home, info]
  14. tautology: UltraLingua English Dictionary [home, info]
  15. Tautology (grammar), Tautology (language), Tautology (logic), Tautology (rhetoric), Tautology: Wikipedia, the Free Encyclopedia [home, info]
  16. Tautology: Online Plain Text English Dictionary [home, info]
  17. tautology: Webster's Revised Unabridged, 1913 Edition [home, info]
  18. tautology: Rhymezone [home, info]
  19. Tautology: AllWords.com Multi-Lingual Dictionary [home, info]
  20. tautology: Webster's 1828 Dictionary [home, info]
  21. tautology: Free Dictionary [home, info]
  22. tautology: Mnemonic Dictionary [home, info]
  23. tautology: WordNet 1.7 Vocabulary Helper [home, info]
  24. tautology: LookWAYup Translating Dictionary/Thesaurus [home, info]
  25. tautology: Dictionary/thesaurus [home, info]
  26. tautology: Worthless Word For The Day [home, info]

Art dictionaries Art (6 matching dictionaries)
  1. tautology: ArtLex Lexicon of Visual Art Terminology [home, info]
  2. Tautology (Taut.), tautology: Dictionary of Philosophical Terms and Names [home, info]
  3. Tautology: Glossary of English Grammar Terms [home, info]
  4. Tautology: Glossary of Rhetorical Terms with Examples [home, info]
  5. Tautology: Lexicon of Linguistics [home, info]
  6. TAUTOLOGY: Bobs Byway OF POETIC TERMS [home, info]

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

Computing dictionaries Computing (2 matching dictionaries)
  1. tautology: Free On-line Dictionary of Computing [home, info]
  2. tautology: Encyclopedia [home, info]

Medicine dictionaries Medicine (1 matching dictionary)
  1. tautology: online medical dictionary [home, info]

Miscellaneous dictionaries Miscellaneous (1 matching dictionary)
  1. tautology: Wordcraft Dictionary [home, info]

Science dictionaries Science (3 matching dictionaries)
  1. Tautology: Eric Weisstein's World of Mathematics [home, info]
  2. tautology: PlanetMath Encyclopedia [home, info]
  3. tautology: FOLDOP - Free On Line Dictionary Of Philosophy [home, info]

Slang dictionaries Slang (1 matching dictionary)
  1. tautology: Urban Dictionary [home, info]

Quick definitions from Macmillan (
American English Definition British English Definition

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Quick definitions from WordNet (tautology)

noun:  useless repetition ("To say that something is `adequate enough' is a tautology")
noun:  (logic) a statement that is necessarily true ("The statement `he is brave or he is not brave' is a tautology")

Word origin

Words similar to tautology

Popular adjectives describing tautology

Phrases that include tautology:   semantic tautology, syntactic tautology, necro tautology

Words similar to tautology:   tautologies, more...

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