The noun has 4 meanings:
Meaning #1:
tropical American tree having wood like mahogany and sweet edible egg-shaped fruit; in some classifications placed in the genus Calocarpum
Synonyms: marmalade tree, sapote, Pouteria zapota, Calocarpum zapota
Meaning #2:
tropical American tree having edible fruit with a leathery rind
Synonyms: mammee apple, mamey, mammee tree, Mammea americana
Meaning #3:
globular or ovoid tropical fruit with thick russet leathery rind and juicy yellow or reddish flesh
Synonyms: mamey, mammee apple
Meaning #4:
brown oval fruit flesh makes excellent sherbet
Synonyms: sapote, marmalade plum




