Corylus avellana grandis vs filbert

Corylus avellana grandis and filbert both are nouns.

Word	Noun	Adjective	Verb	Adverb
Corylus avellana grandis	Yes	No	No	No
filbert	Yes	No	No	No

As nouns, Corylus avellana grandis and filbert are synonyms defined as:

Corylus avellana grandis and filbert: small nut-bearing tree much grown in Europe

Other synonyms of Corylus avellana grandis include cobnut, Corylus avellana.

Corylus avellana grandis (noun)	filbert (noun)
small nut-bearing tree much grown in Europe	nut of any of several trees of the genus Corylus
	small nut-bearing tree much grown in Europe