いちだんどうし 一段動詞 LinksSentence search for 一段動詞Sentence search for いちだんどうしKanji details for 一, 段, 動 and 詞Edit in JMdict Noun1. ichidan verb; type 2 verb; vowel-stem verb; ru-verbGrammar, See also 五段動詞 Discussions Log in to talk about this word.