noun
half-day off; half-holiday
Refers to taking a half day off from work or school, typically either the morning or afternoon. Often used in compounds like 半休を取る.
今日は半休を取って、午後から病院に行きます。
I'm taking a half-day off today and going to the hospital in the afternoon.
半休の申請は前日までに出してください。
Please submit your half-day off request by the day before.