order Palmales vs family Arecaceae

order Palmales and family Arecaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
order Palmales	Yes	No	No	No
family Arecaceae	Yes	No	No	No

order Palmales (noun)	family Arecaceae (noun)
coextensive with the family Palmae: palms	chiefly tropical trees and shrubs and vines usually having a tall columnar trunk bearing a crown of very large leaves; coextensive with the order Palmales