tautology
noun pl. tautologies
- needless repetition of an idea in a different word, phrase, or sentence; redundancy; pleonasm (Ex.: “necessary essentials”)
- an instance of such repetition
- Logic a proposition that is analytic (sense )
See tautology in American Heritage Dictionary 4
(tô-tŏlˈə-jē)
noun pl. tau·tol·o·gies a. Needless repetition of the same sense in different words; redundancy.
b. An instance of such repetition.
- Logic An empty or vacuous statement composed of simpler statements in a fashion that makes it logically true whether the simpler statements are factually true or false; for example, the statement Either it will rain tomorrow or it will not rain tomorrow.
Related Forms:
- tauˌto·logˈi·cal (tôtˌl-ŏjˈĭ-kəl), tauˌto·logˈic (-ĭk) adjective
- tauˌto·logˈi·cal·ly adverb
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