a trench made in the earth by digging, particularly a trench for draining wet land, for guarding or fencing inclosures, or for preventing an approach to a town or fortress. in the latter sense, it is called also a moat or a fosse.-any long, narrow receptacle for water on the surface of the earth.-to dig a ditch or ditches in; to drain by a ditch or ditches; as, to ditch moist land.-to surround with a ditch.-to throw into a ditch; as, the engine was ditched and turned on its side.-to dig a ditch or ditches.