order Perciformes vs family Opisthognathidae

order Perciformes and family Opisthognathidae both are nouns.

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

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