ditch

ditch is a   Noun

Definition:

[1] 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.

[2] Any long, narrow receptacle for water on the surface of the earth.

Synonyms: