#1 floor n. [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". wn
#2 floor n. [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?". wn
#3 floor n. [base] a lower limit; "the government established a wage floor". wn
#4 floor n. the ground on which people and animals move about; "the fire spared the forest floor". wn
#5 floor n. the bottom surface of any lake or other body of water. wn
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