Cancellation of a lecture or class (temporary suspension of a specific lesson).
教授の急用で今日のゼミは休講になった。
Today's seminar was canceled because the professor had urgent business.
雪のため、大学の全ての授業が休講になった。
All university classes were canceled because of the snow.
休講の代わりにオンラインで課題が出された。
Instead of a canceled class, assignments were given online.