floor vs cave

floor and cave both are nouns.

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

floor (noun)	cave (noun)
the inside lower horizontal surface (as of a room, hallway, tent, or other structure)	a geological formation consisting of an underground enclosure with access from the surface of the ground or from the sea
a structure consisting of a room or set of rooms at a single position along a vertical scale
a large room in a exchange where the trading is done
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

floor (verb)	cave (verb)
knock down with force	explore natural caves
surprise greatly; knock someone's socks off	hollow out as if making a cave or opening