Ericaceae vs order Ericales

Ericaceae and order Ericales both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ericaceae	Yes	No	No	No
order Ericales	Yes	No	No	No

As nouns, order Ericales is a hypernym of Ericaceae; that is, order Ericales is a word with a broader meaning than Ericaceae:

Ericaceae: heathers
order Ericales: Ericaceae, Clethraceae, Diapensiaceae, Epacridaceae, Lennoaceae, Pyrolaceae, Monotropaceae

Other hypernyms of Ericaceae include dilleniid dicot family, Ericales.

Ericaceae (noun)	order Ericales (noun)
heathers	Ericaceae, Clethraceae, Diapensiaceae, Epacridaceae, Lennoaceae, Pyrolaceae, Monotropaceae