subfamily Corylaceae vs family Corylaceae

subfamily Corylaceae and family Corylaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
subfamily Corylaceae	Yes	No	No	No
family Corylaceae	Yes	No	No	No

As nouns, subfamily Corylaceae and family Corylaceae are synonyms defined as:

subfamily Corylaceae and family Corylaceae: used in some classification systems for the genus Corylus

Other synonyms of subfamily Corylaceae include Corylaceae.

subfamily Corylaceae (noun)	family Corylaceae (noun)
used in some classification systems for the genus Corylus	used in some classification systems for the genus Corylus