A2
a particular level of a building
Dictionary examples:
Each floor of the library has books in a different language. (0.0)
The top floor is where we keep our pet giraffe. (0.0)
I pressed all the floor buttons and ran out of the elevator. (0.0)
This building has five floors. (8.2)
a ground floor/first-floor apartment (21.0)
We live on the third floor. (28.2)
Take the elevator to the 51st floor. (46.0)