order Perciformes vs suborder Mugiloidea

order Perciformes and suborder Mugiloidea both are nouns.

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

order Perciformes (noun)	suborder Mugiloidea (noun)
one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna	fishes distinguished by abdominal pelvic fins: families Mugilidae; Atherinidae; Sphyraenidae