だん い段 LinksSentence search for い段Sentence search for いだんSentence search for イ段Sentence search for イだんKanji details for 段Edit in JMdict Noun1. row of syllables on the Japanese syllabary table that ends with the vowel sound "i"Linguistics, See also 五十音Other formsイ段 【イだん】 Discussions Log in to talk about this word.