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We found 45 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 (30 matching dictionaries) tautology: American Heritage Dictionary of the English Language [home, info] tautology: Collins English Dictionary [home, info] tautology: Vocabulary.com [home, info] tautology: Macmillan Dictionary [home, info] tautology: Merriam-Webster's Online Dictionary, 11th Edition [home, info] Tautology, tautology: Wordnik [home, info] tautology: Cambridge Advanced Learner's Dictionary [home, info] Tautology: Wiktionary [home, info] tautology: Webster's New World College Dictionary, 4th Ed. [home, info] tautology: The Wordsmyth English Dictionary-Thesaurus [home, info] tautology: Infoplease Dictionary [home, info] tautology: Dictionary.com [home, info] tautology: Online Etymology Dictionary [home, info] tautology: UltraLingua English Dictionary [home, info] Tautology (disambiguation), Tautology (logic), Tautology (rhetoric), Tautology: Wikipedia, the Free Encyclopedia [home, info] Tautology: Online Plain Text English Dictionary [home, info] tautology: Webster's Revised Unabridged, 1913 Edition [home, info] tautology: Rhymezone [home, info] Tautology: AllWords.com Multi-Lingual Dictionary [home, info] tautology: Webster's 1828 Dictionary [home, info] tautology: Hutchinson's Dictionary of Difficult Words [home, info] tautology: Free Dictionary [home, info] tautology, tautology: Hutchinson Dictionaries [home, info] tautology: Mnemonic Dictionary [home, info] tautology: WordNet 1.7 Vocabulary Helper [home, info] tautology: LookWAYup Translating Dictionary/Thesaurus [home, info] tautology: Dictionary/thesaurus [home, info] tautology: Worthless Word For The Day [home, info] Art (6 matching dictionaries) tautology: ArtLex Lexicon of Visual Art Terminology [home, info] Tautology (Taut.), tautology: Dictionary of Philosophical Terms and Names [home, info] Tautology: Glossary of English Grammar Terms [home, info] Tautology: Glossary of Rhetorical Terms with Examples [home, info] Tautology: Lexicon of Linguistics [home, info] TAUTOLOGY: Bobs Byway OF POETIC TERMS [home, info] Business (1 matching dictionary) tautology: Legal dictionary [home, info] Computing (2 matching dictionaries) tautology: Free On-line Dictionary of Computing [home, info] tautology: Encyclopedia [home, info] Medicine (1 matching dictionary) tautology: online medical dictionary [home, info] Miscellaneous (1 matching dictionary) tautology: Wordcraft Dictionary [home, info] Science (3 matching dictionaries) Tautology: Eric Weisstein's World of Mathematics [home, info] tautology: PlanetMath Encyclopedia [home, info] tautology: FOLDOP - Free On Line Dictionary Of Philosophy [home, info] Slang (1 matching dictionary) tautology: Urban Dictionary [home, info]

Quick definitions from Macmillan ( ) Provided by 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