Spanish lime vs fruit tree

Spanish lime and fruit tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
Spanish lime	Yes	No	No	No
fruit tree	Yes	No	No	No

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

Spanish lime: tropical American tree bearing a small edible fruit with green leathery skin and sweet juicy translucent pulp
fruit tree: tree bearing edible fruit

Spanish lime (noun)	fruit tree (noun)
round one-inch Caribbean fruit with green leathery skin and sweet juicy translucent pulp; eaten like grapes	tree bearing edible fruit
tropical American tree bearing a small edible fruit with green leathery skin and sweet juicy translucent pulp