A floor is the bottom surface of a room or vehicle, and it can be made of various materials such as stone, wood, bamboo, metal, or any other material that can support the expected load. Floors typically consist of a subfloor for support and a floor covering used to give a good walking surface. In modern buildings, the subfloor often has electrical wiring, plumbing, and other services built in. The levels of a building are often referred to as floors, although sometimes referred to as storeys.
In addition to being the bottom surface of a room, a floor can also refer to the surface of a structure on which one travels, such as the floor of a bridge. The term "floor" can also be used to describe a main level space, as in a stock exchange or legislative chamber, distinguished from a platform or gallery.
The word "floor" can also be used as a verb, meaning to knock or bring down, or to surprise or shock someone.
