クラス替がえ

noun

class change; class shuffle; rearrangement of students into new classes

Refers to the annual school event where students are reassigned to different homeroom classes, typically at the start of a new school year in Japan.

• 来らい月げつ、クラス替がえがあるから、誰だれと同おなじクラスになるか楽たのしみだ。

  Next month there's a class shuffle, so I'm excited to see who I'll be in the same class with.

• クラス替がえの結けっ果かが掲けい示じ板ばんに貼はり出だされた。

  The results of the class rearrangement were posted on the bulletin board.