Percomorphi vs suborder Scombroidea

Percomorphi and suborder Scombroidea both are nouns.

Word	Noun	Adjective	Verb	Adverb
Percomorphi	Yes	No	No	No
suborder Scombroidea	Yes	No	No	No

Percomorphi (noun)	suborder Scombroidea (noun)
one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna	mackerels, tunas, albacores, bonitos, swordfishes, sailfishes