loquat vs fruit tree

loquat and fruit tree both are nouns.

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

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

loquat: evergreen tree of warm regions having fuzzy yellow olive-sized fruit with a large free stone; native to China and Japan
fruit tree: tree bearing edible fruit

loquat (noun)	fruit tree (noun)
yellow olive-sized semitropical fruit with a large free stone and relatively little flesh; used for jellies	tree bearing edible fruit
evergreen tree of warm regions having fuzzy yellow olive-sized fruit with a large free stone; native to China and Japan