automobile vs tail fin

automobile and tail fin both are nouns.

Word	Noun	Adjective	Verb	Adverb
automobile	Yes	No	Yes	No
tail fin	Yes	No	No	No

automobile (noun)	tail fin (noun)
a motor vehicle with four wheels; usually propelled by an internal combustion engine	the tail of fishes and some other aquatic vertebrates
	a stabilizer that is part of the vertical tail structure of an airplane
	one of a pair of decorations projecting above the rear fenders of an automobile

automobile (verb)	tail fin (verb)
travel in an automobile