floorboard vs car

floorboard and car both are nouns.

Word	Noun	Adjective	Verb	Adverb
floorboard	Yes	No	No	No
car	Yes	No	No	No

floorboard (noun)	car (noun)
a board in the floor	a motor vehicle with four wheels; usually propelled by an internal combustion engine
the floor of an automobile	a wheeled vehicle adapted to the rails of railroad
	where passengers ride up and down
	the compartment that is suspended from an airship and that carries personnel and the cargo and the power plant
	a conveyance for passengers or freight on a cable railway