rock sunfish vs rock bass

rock sunfish and rock bass both are nouns.

Word	Noun	Adjective	Verb	Adverb
rock sunfish	Yes	No	No	No
rock bass	Yes	No	No	No

As nouns, rock sunfish and rock bass are synonyms defined as:

rock sunfish and rock bass: game and food fish of upper Mississippi and Great Lakes

Other synonyms of rock sunfish include Ambloplites rupestris.

rock sunfish (noun)	rock bass (noun)
game and food fish of upper Mississippi and Great Lakes	game and food fish of upper Mississippi and Great Lakes
	a kind of sea bass