WordNet sense 1 (tropical American tree having edible yellow fruit):

Spondias mombin, yellow mombin, yellow mombin tree

WordNet sense 2 (small native American shrubby tree bearing small edible yellow to reddish fruit):

chickasaw plum, hog plum bush, Prunus angustifolia

WordNet sense 3 (fruit of the wild plum of southern United States):

wild plum