(grammar) The Classical Japanese bigrade verb conjugation class, consisting of the two subclasses of 上(かみ)二(に)段(だん)活(かつ)用(よう) (kami nidan katsuyō, “upper-bigrade conjugation”) and 下(しも)二(に)段(だん)活(かつ)用(よう) (shimo nidan katsuyō, “lower-bigrade conjugation”)

(grammar) a verbal conjugation class consisting of five alternating bases: -a, -i, -u, -e, and -o

(Classical Japanese grammar) a verbal conjugation class consisting of four alternating bases: -a, -i, -u, and -e

(Classical Japanese grammar) a verbal conjugation class in which the verb stem ends in n-

(linguistics, uncommon) trigrade conjugation / (informal) 3-step process

(management) key performance indicators; KPI

(grammar) a verbal conjugation class in which the verb stem ends in k-, with minor historical changes

(Classical Japanese grammar) a verbal conjugation class in which the verb stem ends in r- with four irregular bases: -a, -i, -u, and -e

(Classical Japanese grammar) a verbal conjugation class with the following inflections: -e/-e/-u/-uru/-ure/-e[yo]

(grammar) a verbal conjugation class in which the verb stem ends in s-