Blennioidea vs Perciformes

Blennioidea and Perciformes both are nouns.

Word	Noun	Adjective	Verb	Adverb
Blennioidea	Yes	No	No	No
Perciformes	Yes	No	No	No

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