Jisho

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Noun
1. tautology
Wikipedia definition
2. Tautology (rhetoric)Tautology (from Greek tauto, "the same" and logos, "word/idea") is an unnecessary repetition of meaning, using dissimilar words that effectively say the same thing (often originally from different languages). It is considered a fault of style and was defined by Fowler as "saying the same thing twice," if it is not apparently necessary for the entire meaning of a phrase to be repeated.
Read “Tautology (rhetoric)” on English Wikipedia
Read “トートロジー” on Japanese Wikipedia
Read “Tautology (rhetoric)” on DBpedia

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