いっせきとう 一石を投じる Show inflections LinksSentence search for 一石を投じるSentence search for いっせきをとうじるKanji details for 一, 石 and 投Edit in JMdict Expressions (phrases, clauses, etc.), Ichidan verb1. to create a stir; to make waves; to raise a question about; to cause a sensationIdiomatic expression Discussions Log in to talk about this word.