peach vs fruit tree

peach and fruit tree both are nouns.

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

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

peach (noun)	fruit tree (noun)
a shade of pink tinged with yellow	tree bearing edible fruit
downy juicy fruit with sweet yellowish or whitish flesh
a very attractive or seductive looking woman
cultivated in temperate regions

peach (verb)	fruit tree (verb)
divulge confidential information or secrets