order Perciformes vs family Haemulidae

order Perciformes and family Haemulidae both are nouns.

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

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