grouper vs sea bass

grouper and sea bass both are nouns.

Word	Noun	Adjective	Verb	Adverb
grouper	Yes	No	No	No
sea bass	Yes	No	No	No

As nouns, sea bass is a hypernym of grouper; that is, sea bass is a word with a broader meaning than grouper:

grouper: usually solitary bottom sea basses of warm seas
sea bass: any of various food and sport fishes of the Atlantic coast of the United States having an elongated body and long spiny dorsal fin

grouper (noun)	sea bass (noun)
usually solitary bottom sea basses of warm seas	any of various food and sport fishes of the Atlantic coast of the United States having an elongated body and long spiny dorsal fin
flesh of a saltwater fish similar to sea bass	the lean flesh of a saltwater fish of the family Serranidae