family Rachycentridae vs Perciformes

family Rachycentridae and Perciformes both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Rachycentridae	Yes	No	No	No
Perciformes	Yes	No	No	No

family Rachycentridae (noun)	Perciformes (noun)
family of pelagic fishes containing solely the cobia	one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna