car vs tailfin

car and tailfin both are nouns.

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

car (noun)	tailfin (noun)
a motor vehicle with four wheels; usually propelled by an internal combustion engine	a stabilizer that is part of the vertical tail structure of an airplane
a wheeled vehicle adapted to the rails of railroad	one of a pair of decorations projecting above the rear fenders of an automobile
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