noun
under repair; being repaired
Used for machines, facilities, or infrastructure currently undergoing repair. Often seen on signs or in announcements.
このエレベーターは修理中です。
This elevator is under repair.
トイレは修理中のため使用できません。
The restroom is out of service due to repairs.
Compound of 修理 (repair) + 中 (in the middle of).