peach tree vs fruit tree

peach tree and fruit tree both are nouns.

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

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

peach tree (noun)	fruit tree (noun)
cultivated in temperate regions	tree bearing edible fruit