litchi nut vs edible fruit

litchi nut and edible fruit both are nouns.

Word	Noun	Adjective	Verb	Adverb
litchi nut	Yes	No	No	No
edible fruit	Yes	No	No	No

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

litchi nut: Chinese fruit having a thin brittle shell enclosing a sweet jellylike pulp and a single seed; often dried
edible fruit: edible reproductive body of a seed plant especially one having sweet flesh

litchi nut (noun)	edible fruit (noun)
Chinese fruit having a thin brittle shell enclosing a sweet jellylike pulp and a single seed; often dried	edible reproductive body of a seed plant especially one having sweet flesh