A water bottle is a type of CONTAINER used to store and transport liquids, such as water. It can come in many shapes and sizes, and is often made of plastic or metal. The term 'water bottle' can refer to several different types of containers, including a FLASK (5 letters), a CANTEEN (7 letters), a CARAFE (6 letters), and a CONTAINER (9 letters). All of these items are designed to hold liquids, and are commonly used for drinking, storing, and transporting water.