family Lutjanidae vs order Percomorphi

family Lutjanidae and order Percomorphi both are nouns.

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

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