This is the 2465th most frequent Japanese word.
休校
"休校" means "school closure."
休校 is used to describe the state of the school being closed for a specific reason.
昨日、大雪のために学校は休校になりました。
Yesterday, the school was closed due to heavy snow.
休校 is used to indicate days when the school is officially closed.
先生が休校の日には学校に行かないと言っていました。
The teacher said we don't go to school on days when it is closed.
休校 is used with a time context to describe actions taking place during the period of school closure.