order Perciformes vs family Centropomidae

order Perciformes and family Centropomidae both are nouns.

Word	Noun	Adjective	Verb	Adverb
order Perciformes	Yes	No	No	No
family Centropomidae	Yes	No	No	No

order Perciformes (noun)	family Centropomidae (noun)
one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna	a family of fish or the order Perciformes including robalos