jackfruit tree vs fruit tree

jackfruit tree and fruit tree both are nouns.

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

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

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

jackfruit tree (noun)	fruit tree (noun)
East Indian tree cultivated for its immense edible fruit and seeds	tree bearing edible fruit