A large cask is a type of container used to store and transport liquids, such as wine or beer. It is usually made of wood and can vary in size. The term 'large cask' can refer to four different types of containers: a TUN (3 letters), a HOGSHEAD (8 letters), a VAT (3 letters), or a BUTT (4 letters). A TUN is the largest of the four, with a capacity of around 252 gallons. A HOGSHEAD is slightly smaller, with a capacity of around 63 gallons. A VAT is even smaller, with a capacity of around 31 gallons. Finally, a BUTT is the smallest of the four, with a capacity of around 126 gallons.