WordNet sense 1 (Chinese tree cultivated especially in Philippines and India for its edible fruit; sometimes placed in genus Nephelium):

lichee, Litchi chinensis, litchi tree, Nephelium litchi

WordNet sense 2 (Chinese fruit having a thin brittle shell enclosing a sweet jellylike pulp and a single seed; often dried):

lychee, leechee, lichi, litchee, litchi nut