akee vs fruit tree

akee and fruit tree both are nouns.

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

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

akee: widely cultivated in tropical and subtropical regions for its fragrant flowers and colorful fruits; introduced in Jamaica by William Bligh
fruit tree: tree bearing edible fruit

akee (noun)	fruit tree (noun)
red pear-shaped tropical fruit with poisonous seeds; flesh is poisonous when unripe or overripe	tree bearing edible fruit
widely cultivated in tropical and subtropical regions for its fragrant flowers and colorful fruits; introduced in Jamaica by William Bligh