storey
n. countable B1 Intermediate US //ˈstɔɹi// UK //stˈɔːɹi// storey
n. one level or floor of a building. You use this word when you are counting how high a house or office is.
n. a level or floor of a building, excluding the basement. Often used to describe the height of a structure in terms of its horizontal divisions.
The new office building is ten storeys high.
We live in a small house with only one storey, so there are no stairs to climb.
The architect proposed a multi-storey structure that would maximise the limited urban footprint while providing panoramic views from the upper residential levels.
Usage
Commonly used in British English; the American spelling is 'story'.
Pitfall
a five-storeys buildinga five-storey buildingWhen used as a compound adjective before a noun, the singular form 'storey' is required.