upper, over

the first volume in a two- or three-volume set

the start / a high place; the top / one with higher rank

one day

school grammar / (specifically) Japanese school grammar, based on Shinkichi Hashimoto's work and now universally employed in Japanese schools and dictionaries.

(grammar) solecism

Japanese-language education for non-native speakers

impossible to understand, utterly confused

importance

to raise / to record / (matter, topic): to bring up / to serve (food)