beechnut vs edible nut

beechnut and edible nut both are nouns.

Word	Noun	Adjective	Verb	Adverb
beechnut	Yes	No	No	No
edible nut	Yes	No	No	No

As nouns, edible nut is a hypernym of beechnut; that is, edible nut is a word with a broader meaning than beechnut:

beechnut: small sweet triangular nut of any of various beech trees
edible nut: a hard-shelled seed consisting of an edible kernel or meat enclosed in a woody or leathery shell

beechnut (noun)	edible nut (noun)
small sweet triangular nut of any of various beech trees	a hard-shelled seed consisting of an edible kernel or meat enclosed in a woody or leathery shell