noun
Refers to a single frame in a film, animation, or a panel in a comic/manga.
このアニメは1秒間に24コマ使われている。
This anime uses 24 frames per second.
漫画のコマ割りが上手い。
The panel layout of the manga is skillful.
noun
Used for a scene or cut in a film, play, or narrative.
映画の最後のコマが印象的だった。
The final scene of the movie was impressive.
noun
time block; period
Refers to a time slot or block in a schedule, especially in educational contexts like a class period.
時間割の1コマ目は数学だ。
The first period of the schedule is math.
Originally from the kanji 齣, which refers to a frame or section. The katakana form コマ is now standard.