red snapper vs snapper

red snapper and snapper both are nouns.

Word	Noun	Adjective	Verb	Adverb
red snapper	Yes	No	No	No
snapper	Yes	No	No	No

As nouns, snapper is a hypernym of red snapper; that is, snapper is a word with a broader meaning than red snapper:

red snapper: an esteemed food fish with pinkish red head and body; common in the Atlantic coastal waters of North America and the Gulf of Mexico
snapper: any of several large sharp-toothed marine food and sport fishes of the family Lutjanidae of mainly tropical coastal waters

As nouns, snapper is a hypernym of red snapper; that is, snapper is a word with a broader meaning than red snapper:

red snapper: highly esteemed reddish lean flesh of snapper from Atlantic coast and Gulf of Mexico
snapper: flesh of any of various important food fishes of warm seas

red snapper (noun)	snapper (noun)
an esteemed food fish with pinkish red head and body; common in the Atlantic coastal waters of North America and the Gulf of Mexico	large-headed turtle with powerful hooked jaws found in or near water; prone to bite
highly esteemed reddish lean flesh of snapper from Atlantic coast and Gulf of Mexico	any of several large sharp-toothed marine food and sport fishes of the family Lutjanidae of mainly tropical coastal waters
	Australian food fish having a pinkish body with blue spots
	a party favor consisting of a paper roll (usually containing candy or a small favor) that pops when pulled at both ends
	flesh of any of various important food fishes of warm seas
	(football) the person who plays center on the line of scrimmage and snaps the ball to the quarterback