family Gerreidae vs order Perciformes

family Gerreidae and order Perciformes both are nouns.

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

family Gerreidae (noun)	order Perciformes (noun)
mojarras	one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna