宿題|しゅくだいshukudai[0]heiban (flat)

1. nounhomework; assignment
   今日きょうは宿題しゅくだいが無ない。↗

   I have no homework today.
2. nounpending issue; unresolved problem; open question

• Synonym課題かだいNeutralAn assigned task or project, not limited to homework; also a problem awaiting solution, as in 「夏休みの課題」「今後の課題」.
• Related予習よしゅうNeutralStudying material in advance of a lesson; the focus is pre-class preparation. 宿題 is work assigned by a teacher, and 予習 can itself be the content of 宿題.
• Related問題もんだいNeutralA question or problem, as in 「問題を解く」; 宿題 is the work you take home to do.

For homework, 「宿題」 is the default word. Use 「予習」 for studying before a lesson, 「課題」 for an assigned task or broader issue to tackle, and 「問題」 for the questions or problems themselves.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 自宅じたくで行おこなう課題かだい。学校がっこうなどで生徒せいと、児童じどうに対たいして課かされる。
2. 残のこされた解決かいけつすべき課題かだい。