This is the 4394th most frequent Chinese word.
房间
Room.
In this sentence, '房间' refers to a unit of space used for a specific function, here an unused or empty room.
客厅旁边有一个空的房间。
Next to the living room, there is an empty room.
Here, '房间' is used to describe accommodation spaces provided by the hotel.
这个酒店的房间都很干净整洁。
The rooms in this hotel are all clean and tidy.
In this context, '房间' specifies a personal room, implying a private space utilized and managed by an individual.