Synonyms for Damson Plum (same or very similar meaning)
WordNet sense 1 (tropical American timber tree with dark hard heavy wood and small plumlike purple fruit):
caimitillo, satinleaf, Chrysophyllum oliviformeWordNet sense 2 (plum tree long cultivated for its edible fruit):
damson plum tree, Prunus domestica insititiaWordNet sense 3 (sweet dark purple plum):
damsonFrom the ODE community, based on WordNetadd/edit