pawpaw vs melon tree

pawpaw and melon tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
pawpaw	Yes	No	No	No
melon tree	Yes	No	No	No

As nouns, pawpaw and melon tree are synonyms defined as:

pawpaw and melon tree: tropical American shrub or small tree having huge deeply palmately cleft leaves and large oblong yellow fruit

Other synonyms of pawpaw include Carica papaya, papaia, papaya, papaya tree.

pawpaw (noun)	melon tree (noun)
fruit with yellow flesh; related to custard apples	tropical American shrub or small tree having huge deeply palmately cleft leaves and large oblong yellow fruit
small tree native to the eastern United States having oblong leaves and fleshy fruit
tropical American shrub or small tree having huge deeply palmately cleft leaves and large oblong yellow fruit