coco plum vs fruit tree

coco plum and fruit tree both are nouns.

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

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

coco plum (noun)	fruit tree (noun)
plum-shaped whitish to almost black fruit used for preserves; tropical American	tree bearing edible fruit
small tropical American tree bearing edible plumlike fruit