#rampart__bulwark__wall  an embankment built around a space for defensive purposes; "they stormed the ramparts of the city"; "they blew the trumpet and the walls came tumbling down"
  supertype:  embankment  a long artificial mound of stone or earth; built to hold back water or to support a road or as protection
  part of:  munition
  subtype:  bailey  the outer defensive wall that surrounds the outer courtyard of a castle
  subtype:  battlement__crenelation  a rampart built around the top of a castle with regular gaps for firing arrows or guns
  subtype:  Chinese_Wall__Great_Wall_of_China  a fortification 1,500 miles long built across northern China in the 3rd century BC
  subtype:  earthwork  an earthen rampart
  subtype:  fraise  sloping or horizontal rampart of pointed stakes

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