Jug/dʒʌɡ/ Definition 1 of 4Pro Tip 1/3Liquid Container A jug is commonly used in the kitchen or for serving drinks. Please pass the water jug. Pro Tip 2/3Different Sizes Jugs come in various sizes, but all have a spout for pouring. I need a large jug for lemonade. Pro Tip 3/3Material Variety Jugs can be made of glass, plastic, or pottery. The ceramic jug fell and shattered.