Percomorphi vs family Serranidae

Percomorphi and family Serranidae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Percomorphi	Yes	No	No	No
family Serranidae	Yes	No	No	No

Percomorphi (noun)	family Serranidae (noun)
one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna	marine fishes: sea basses, sea perches, groupers, jewfish