floor, flooring -- (the inside lower horizontal surface (as of a room, hallway, tent, or other structure); "they needed rugs to cover the bare floors"; "we spread our sleeping bags on the dry floor of the tent")
floor, level, storey, story -- (a structure consisting of a room or set of rooms at a single position along a vertical scale; "what level is the office on?")
floor, base -- (a lower limit; "the government established a wage floor")
floor -- (the ground on which people and animals move about; "the fire spared the forest floor")
floor -- (the bottom surface of any lake or other body of water)
floor -- (the lower inside surface of any hollow structure; "the floor of the pelvis"; "the floor of the cave")
floor -- (the occupants of a floor; "the whole floor complained about the lack of heat")
floor -- (the parliamentary right to address an assembly; "the chairman granted him the floor")
floor -- (the legislative hall where members debate and vote and conduct other business; "there was a motion from the floor")
floor, trading floor -- (a large room in a exchange where the trading is done; "he is a floor trader")