#cask__barrel  a cylindrical container that holds liquids
  supertype:  #vessel  an object used as a container (especially for liquids)
  subtype:  #beer_barrel  #butt  #hogshead  #keg  #pickle_barrel  #shook  #tun  #wine_cask
  part:  #breech__rear_of_barrel__rear_of_tube  opening in the rear of the barrel of a gun where bullets can be loaded
     part:  #breechblock__breech_closer  a metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing
  part:  #bung__spile  a plug used to close a hole in a barrel or flask
  part:  #hoop.band__ring  a rigid circular band of metal or wood or other material used for holding or fastening or hanging or pulling; "there was still a rusty iron hoop for tying a horse"
  part:  #lag__stave  one of several thin slats of wood forming the sides of a barrel or bucket
  part:  #spigot__tap  a plug for a bunghole in a cask

No statement uses or specializes #cask; click here to add one.