family Opisthognathidae vs order Percomorphi

family Opisthognathidae and order Percomorphi both are nouns.

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

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