Percomorphi vs suborder Blennioidea

Percomorphi and suborder Blennioidea both are nouns.

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

Percomorphi (noun)	suborder Blennioidea (noun)
one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna	blennies, butterfishes, gunnels