coco plum vs edible fruit

coco plum and edible fruit both are nouns.

Word	Noun	Adjective	Verb	Adverb
coco plum	Yes	No	No	No
edible fruit	Yes	No	No	No

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

coco plum: plum-shaped whitish to almost black fruit used for preserves; tropical American
edible fruit: edible reproductive body of a seed plant especially one having sweet flesh

coco plum (noun)	edible fruit (noun)
plum-shaped whitish to almost black fruit used for preserves; tropical American	edible reproductive body of a seed plant especially one having sweet flesh
small tropical American tree bearing edible plumlike fruit