giant pigfish vs wrasse

giant pigfish and wrasse both are nouns.

Word	Noun	Adjective	Verb	Adverb
giant pigfish	Yes	No	No	No
wrasse	Yes	No	No	No

As nouns, wrasse is a hypernym of giant pigfish; that is, wrasse is a word with a broader meaning than giant pigfish:

giant pigfish: found around the Great Barrier Reef
wrasse: chiefly tropical marine fishes with fleshy lips and powerful teeth; usually brightly colored

giant pigfish (noun)	wrasse (noun)
found around the Great Barrier Reef	chiefly tropical marine fishes with fleshy lips and powerful teeth; usually brightly colored