noun, noun or participle which takes 'suru', intransitive verb
returning to school
Used when students or staff come back to the school building after being away, e.g., after holidays, trips, or illness. Often used in formal school contexts.
夏休みが終わり、生徒たちが帰校した。
Summer vacation ended and the students returned to school.
インフルエンザが治り、来週から帰
My flu has cleared up, so I can return to school from next week.
noun, noun or participle which takes 'suru', intransitive verb
returning home from school
Less common than 下校 (げこう). 帰校 can also mean going home after school, but 下校 is the standard term for leaving school at the end of the day. 帰校 in this sense may appear in older or formal writing.
See also: 下校
放課後、生徒は速やかに帰校するように言われた。
After class, the students were told to go home from school promptly.