"yams" in the noun sense
1. yam
edible tuber of any of several yams
2. yam, yam plant
any of a number of tropical vines of the genus Dioscorea many having edible tuberous roots
3. yam
sweet potato with deep orange flesh that remains moist when baked
4. yam
edible tuberous root of various yam plants of the genus Dioscorea grown in the tropics world-wide for food
Source: WordNet® (An amazing lexical database of English)
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