papaia vs fruit tree

papaia and fruit tree both are nouns.

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

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

papaia: tropical American shrub or small tree having huge deeply palmately cleft leaves and large oblong yellow fruit
fruit tree: tree bearing edible fruit

papaia (noun)	fruit tree (noun)
tropical American shrub or small tree having huge deeply palmately cleft leaves and large oblong yellow fruit	tree bearing edible fruit