せつ 説 Common word JLPT N3 Show 1 collocation 説を立てる - to put forward a theory LinksSentence search for 説Sentence search for せつKanji details for 説Edit in JMdict Noun, Noun, used as a suffix1. theory; doctrineNoun2. opinion; viewNoun3. rumour; rumor; gossip; hearsay Discussions Log in to talk about this word.