order Perciformes vs family Mullidae

order Perciformes and family Mullidae both are nouns.

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

order Perciformes (noun)	family Mullidae (noun)
one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna	goatfishes or red mullets