noun
schoolwork; lessons; assigned tasks
Refers to academic work, lessons, or tasks assigned in an educational context. Slightly formal; 宿題 (しゅくだい) is more common for homework.
今日の課業は数学の練習問題です。
Today's schoolwork is math practice problems.
課業が多すぎて、遊ぶ時間がない。
I have too much schoolwork and no time to play.