Synonyms for Earthnut (same or very similar meaning)
WordNet sense 1 (any of various highly prized edible subterranean fungi of the genus Tuber; grow naturally in southwestern Europe):
truffle, earth-ball
WordNet sense 2 (a common European plant having edible tubers with the flavor of roasted chestnuts):
Conopodium denudatum
WordNet sense 3 (pod of the peanut vine containing usually 2 nuts or seeds; `groundnut' and `monkey nut' are British terms):
goober, groundnut, peanut, goober pea, monkey nut
From the ODE community, based on WordNet
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