Carboy

A large glass or plastic bottle of 2 gallon capacity or more, with or without handles, and sometimes fitted with a spigot or plastic tubing at the bottom for drainage. Carboys are usually 3-, 5- or 6-gallons, but the author has seen all of the following: 2-gallon, 2.2-gallon, 2.5-gallon, 2.8-gallon, 3-gallon, 5-gallon, 6-gallon, 6.5-gallon, and 7-gallon.

Also see demijohn.