family Apocynaceae vs order Gentianales

family Apocynaceae and order Gentianales both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Apocynaceae	Yes	No	No	No
order Gentianales	Yes	No	No	No

family Apocynaceae (noun)	order Gentianales (noun)
chiefly tropical trees or shrubs or herbs having milky juice and often showy flowers; many are sources of drugs	an order of dicotyledonous plants having gamopetalous flowers, Gentianaceae, Apocynaceae, Asclepiadaceae, Loganiaceae, Oleaceae, Salvadoraceae