What is the difference of 房间，房子， 房屋 and 屋子？

房间 (Fángjiān): This term refers specifically to a room within a larger structure, like a house or apartment. It is often used to describe a bedroom, living room, or any individual room within a building.


房子 (Fángzi): This is a more general term for a house or building. It refers to a standalone structure or a part of a larger building where people live. It can be used to describe a house, apartment, or any kind of dwelling.


房屋 (Fángwū): This term is a bit more formal and is often used in legal or official contexts. It generally refers to buildings or structures in a broader sense, encompassing houses, apartments, and other types of residential or commercial buildings.


屋子 (Wūzi): This is a colloquial and informal term for a room or a house. It is similar to 房间 but is used in a more casual or everyday context. It can refer to any living space or room within a building.