Kami-ichidan (upper one-row) conjugation: a subtype of ichidan conjugation where the stem vowel belongs to the i-series. Historically and grammatically distinguished; in modern explanations it often refers to ichidan verbs ending in -iru.
文法書には上一段活用と下一段活用の違いが図で示されていた。
The grammar book showed the difference between upper and lower ichidan conjugation with a diagram.
『着る』は上一段活用の代表例として挙げられることが多い。
"Kiru" (to wear) is often given as a representative example of kami-ichidan conjugation.
現代の日本語教育では、学習者向けに上一段／下一段の区別を簡略化して教えることもある。
In modern Japanese teaching, the distinction between upper and lower ichidan is sometimes simplified for learners.