Open English Wordnet
Nouns
(n)truffle, earthnut, earth-ballany of various highly prized edible subterranean fungi of the genus Tuber; grow naturally in southwestern Europe
(n)earthnut, Conopodium denudatuma common European plant having edible tubers with the flavor of roasted chestnuts
(n)peanut, earthnut, goober, goober pea, groundnut, monkey nutpod of the peanut vine containing usually 2 nuts or seeds; `groundnut' and `monkey nut' are British terms