The term 'water jug' can be described by two crossword solutions: EWER and OLLA. An EWER is a large pitcher or jug, usually with a handle and spout, used for holding and pouring liquids. It is typically made of metal, ceramic, or glass. An OLLA is a traditional Spanish clay pot used for cooking and storing water. It is usually unglazed and has a wide mouth and a narrow base. Both ewers and ollas are used to store and transport water.