order Percomorphi vs Centropomidae

order Percomorphi and Centropomidae both are nouns.

Word	Noun	Adjective	Verb	Adverb
order Percomorphi	Yes	No	No	No
Centropomidae	Yes	No	No	No

order Percomorphi (noun)	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