Blennioidea vs order Percomorphi

Blennioidea and order Percomorphi both are nouns.

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

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