rider vs car

rider and car both are nouns.

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

rider (noun)	car (noun)
a clause that is appended to a legislative bill	a motor vehicle with four wheels; usually propelled by an internal combustion engine
a traveler who actively rides an animal (as a horse or camel)	a wheeled vehicle adapted to the rails of railroad
a traveler riding in a vehicle (a boat or bus or car or plane or train etc) who is not operating it	where passengers ride up and down
a traveler who actively rides a vehicle (as a bicycle or motorcycle)	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