だいよう 大用 LinksSentence search for 大用Sentence search for だいようSentence search for たいようKanji details for 大 and 用Edit in JMdict Noun1. feces; excrementRare term, Only applies to だいよう, See also 大便Noun2. large effectRare termOther forms大用 【たいよう】 Discussions Log in to talk about this word.