音読み: カ
訓読み: none *
画数: 15
部首: ごんべん（訁）
Meaning
Section / Division / Department / Lesson
- 課題 — assignment / issue
- 課長 — section chief
- 日課 — daily routine
- 学課 — school subject
- 課税 — taxation
- 考課 — evaluation
- 課程 — course / curriculum
- 課外 — extracurricular
With the speech radical 言, 課 conveys structured “segments” assigned in organizations or education—like sections, lessons, and tasks.