building vs floor

building and floor both are nouns.

Word	Noun	Adjective	Verb	Adverb
building	Yes	No	No	No
floor	Yes	No	Yes	No

building (noun)	floor (noun)
the act of constructing something	the inside lower horizontal surface (as of a room, hallway, tent, or other structure)
the commercial activity involved in repairing old structures or constructing new ones	a structure consisting of a room or set of rooms at a single position along a vertical scale
a structure that has a roof and walls and stands more or less permanently in one place	a large room in a exchange where the trading is done
the occupants of a building	the legislative hall where members debate and vote and conduct other business
	the parliamentary right to address an assembly
	a lower limit
	the occupants of a floor
	the bottom surface of any lake or other body of water
	the ground on which people and animals move about
	the lower inside surface of any hollow structure

building (verb)	floor (verb)
	knock down with force
	surprise greatly; knock someone's socks off