order Perciformes vs family Brotulidae

order Perciformes and family Brotulidae both are nouns.

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

order Perciformes (noun)	family Brotulidae (noun)
one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna	chiefly deep-sea fishes related to the Ophidiidae