Leaving school at the end of the day; students going home from school.
放課後、生徒たちは下校してそれぞれの家に帰った。
After school, the students left and went back to their homes.
雨が強くなったので今日は下校時間が早まった。
Because the rain got heavy, dismissal was earlier today.
下校中に友達と話してばかりで、宿題を忘れてしまった。
I was chatting with friends on my way home from school and forgot my homework.