Synonyms for Hazelnut (same or very similar meaning)
WordNet sense 1 (any of several shrubs or small trees of the genus Corylus bearing edible nuts enclosed in a leafy husk):
hazel, hazelnut tree
WordNet sense 2 (nut of any of several trees of the genus Corylus):
cob, filbert, cobnut
From the ODE community, based on WordNet
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