suborder Scombroidea vs order Perciformes

suborder Scombroidea and order Perciformes both are nouns.

Word	Noun	Adjective	Verb	Adverb
suborder Scombroidea	Yes	No	No	No
order Perciformes	Yes	No	No	No

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