monkey nut vs edible nut

monkey nut and edible nut both are nouns.

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

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

monkey nut: pod of the peanut vine containing usually 2 nuts or seeds; `groundnut' and `monkey nut' are British terms
edible nut: a hard-shelled seed consisting of an edible kernel or meat enclosed in a woody or leathery shell

monkey nut (noun)	edible nut (noun)
pod of the peanut vine containing usually 2 nuts or seeds; `groundnut' and `monkey nut' are British terms	a hard-shelled seed consisting of an edible kernel or meat enclosed in a woody or leathery shell