car vs rental

car and rental both are nouns.

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

car (noun)	rental (noun)
a motor vehicle with four wheels; usually propelled by an internal combustion engine	the act of paying for the use of something (as an apartment or house or car)
a wheeled vehicle adapted to the rails of railroad	property that is leased or rented out or let
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

car (adjective)	rental (adjective)
	of or relating to rent
	available to rent or lease