acorn

English Thesaurus

1. fruit of the oak tree: a smooth thin-walled nut in a woody cup-shaped base (noun.plant)

hypernym	:	fruit,
definition	:	the ripened reproductive body of a seed plant (noun.plant)

part holonym	:	acorn cup, cupule,
definition	:	cup-shaped structure of hardened bracts at the base of an acorn (noun.plant)

part meronym	:	oak, oak tree,
definition	:	a deciduous tree of the genus Quercus; has acorns and lobed leaves (noun.plant)