Fagaceae vs beech family

Fagaceae and beech family both are nouns.

Word	Noun	Adjective	Verb	Adverb
Fagaceae	Yes	No	No	No
beech family	Yes	No	No	No

As nouns, Fagaceae and beech family are synonyms defined as:

Fagaceae and beech family: chiefly monoecious trees and shrubs: beeches, chestnuts, oaks; genera Castanea, Castanopsis, Chrysolepis, Fagus, Lithocarpus, Nothofagus, Quercus

Other synonyms of Fagaceae include family Fagaceae.

Fagaceae (noun)	beech family (noun)
chiefly monoecious trees and shrubs: beeches, chestnuts, oaks; genera Castanea, Castanopsis, Chrysolepis, Fagus, Lithocarpus, Nothofagus, Quercus	chiefly monoecious trees and shrubs: beeches, chestnuts, oaks; genera Castanea, Castanopsis, Chrysolepis, Fagus, Lithocarpus, Nothofagus, Quercus