jackfruit vs fruit tree

jackfruit and fruit tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
jackfruit	Yes	No	No	No
fruit tree	Yes	No	No	No

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

jackfruit: East Indian tree cultivated for its immense edible fruit and seeds
fruit tree: tree bearing edible fruit

jackfruit (noun)	fruit tree (noun)
immense East Indian fruit resembling breadfruit; it contains an edible pulp and nutritious seeds that are commonly roasted	tree bearing edible fruit
East Indian tree cultivated for its immense edible fruit and seeds