- a room or a group of related rooms, among similar sets in one building, designed for use as a dwelling.
- a building containing or made up of such rooms.
- any separated room or group of rooms in a house or other dwelling: We heard cries from an apartment at the back of the house.
- a set of rooms used as a dwelling by one person or one family.
- any room in a building, usually one of several forming a suite, esp one that is spacious and well furnished and used as living accommodation, offices, etc
- another name (esp US and Canadian) for flat 2 (def. 1)
- (as modifier)