order Percomorphi vs family Mullidae

order Percomorphi and family Mullidae both are nouns.

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

order Percomorphi (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