汁椀[shiruwan] soup bowl
椀飯振舞[oobanburumai] lavish feast
椀子そば[wankosoba] soba noodles in broth served continuously so that the guest or customer never has an empty bowl
止椀[tomewan] soup served at the end of a traditional Japanese dinner
椀盛[wanmori] food cooked by boiling or stewing

金椀[kanamari] small metal bowl
飯椀[meshiwan] bowl used for serving rice
椀種[wandane] soup ingredients (esp. seafood, tofu, egg)
椀形アンテナ[wanyouantena] dish antenna