yam

definition: edible tuberous root of various yam plants of the genus Dioscorea grown in the tropics world-wide for food
example:
speech part: noun
synonyms:
definition: sweet potato with deep orange flesh that remains moist when baked
example:
speech part: noun
synonyms:
definition: any of a number of tropical vines of the genus Dioscorea many having edible tuberous roots
example:
speech part: noun
synonyms:
definition: edible tuber of any of several yams
example:
speech part: noun
synonyms:

How yam is being used?