noun
vacant room; unoccupied room
Refers to a room that is currently empty and available, often in hotels, apartments, or offices. Compare 空室 (くうしつ), which is more common in formal contexts.
See also: 空室 (くうしつ)
このアパートには空き室が一つあります。
There is one vacant room in this apartment.
ホテルの空き室を確認してください。
Please check the hotel's vacant rooms.