- a container made and shaped like a barrel, especially one larger and stronger, for holding liquids.
- the quantity such a container holds: wine at 32 guineas a cask.
- to place or store in a cask.
- a strong wooden barrel used mainly to hold alcoholic drink
- any barrel
- the quantity contained in a cask
- a lightweight cardboard container with plastic lining and a small tap, used to hold and serve wine
- engineering another name for flask (def. 6)