Stenotomus aculeatus vs porgy

Stenotomus aculeatus and porgy both are nouns.

Word	Noun	Adjective	Verb	Adverb
Stenotomus aculeatus	Yes	No	No	No
porgy	Yes	No	No	No

As nouns, porgy is a hypernym of Stenotomus aculeatus; that is, porgy is a word with a broader meaning than Stenotomus aculeatus:

Stenotomus aculeatus: porgy of southern Atlantic coastal waters of North America
porgy: important deep-bodied food and sport fish of warm and tropical coastal waters; found worldwide

Stenotomus aculeatus (noun)	porgy (noun)
porgy of southern Atlantic coastal waters of North America	important deep-bodied food and sport fish of warm and tropical coastal waters; found worldwide
	lean flesh of fish found in warm waters of southern Atlantic coast of the United States