台たい湾わん山やま芋いもMeaningsNoun1. water yam (Dioscorea alata); winged yam; purple yam (Rare)Kanji used台pedestal湾gulf山mountain芋potatoComposed of台たい湾わんTaiwanNoun山やま芋いもJapanese yam (Dioscorea japonica)Noun