Corylus avellana vs cobnut

Corylus avellana and cobnut both are nouns.

Word	Noun	Adjective	Verb	Adverb
Corylus avellana	Yes	No	No	No
cobnut	Yes	No	No	No

As nouns, Corylus avellana and cobnut are synonyms defined as:

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

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

Corylus avellana (noun)	cobnut (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