上一段 かみいちだん Meanings Noun conjugation (inflection, declension) of ichidan verbs ending in "iru" See also: 上一段活用 (かみいちだんかつよう). Kanji 上 up. Read as かみ. 一 one. Read as イチ. 段 step. Read as ダン. Words containing 上一段 上一段活用 (かみいちだんかつよう) conjugation (inflection, declension) of ichidan verbs ending in "iru" Jinuma: Japanese Dictionary · Word lists