(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”)

steps (up and down); stairs / rating; ranking / row; line (of text) / (mathematics) multiplication table

understanding, comprehension / appreciation

application (the use of a thing) / inflection (of a verb, conjugation; of an adjective or noun, declension)

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

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

to study / to learn

grammar

understand, comprehend / appreciate

important, significant