fishy vs fish

fishy is not a noun while fish is a noun.

Word	Noun	Adjective	Verb	Adverb
fishy	No	Yes	No	No
fish	Yes	No	Yes	No

fishy (noun)	fish (noun)
	any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills
	the flesh of fish used as food

fishy (adjective)	fish (adjective)
of or relating to or resembling fish
not as expected

fishy (verb)	fish (verb)
	catch or try to catch fish or shellfish
	seek indirectly