order Perciformes vs family Gerridae

order Perciformes and family Gerridae both are nouns.

Word	Noun	Adjective	Verb	Adverb
order Perciformes	Yes	No	No	No
family Gerridae	Yes	No	No	No

order Perciformes (noun)	family Gerridae (noun)
one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna	an arthropod family that includes water striders
	mojarras