五ご段だん活かつ用ようごだんかつようMeanings1noungodan verb conjugationgrammar›A fundamental conjugation class in Japanese grammar where the verb stem ends in a consonant and the final kana changes across all five vowel rows (a, i, u, e, o). Contrasts with 一段活用 (ichidan conjugation).See also: 一段活用 (いちだんかつよう) · 五段動詞 (ごだんどうし)