Perciformes vs suborder Blennioidea

Perciformes and suborder Blennioidea both are nouns.

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

Perciformes (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