\Za*re"ba\, n. (Mil.)
An improvised stockade; especially, one made of thorn bushes,
etc. [Written also {zareeba}, and {zeriba}.] [Egypt]

      ``Ah,'' he moralizes, ``what wonderful instinct on the
      part of this little creature to surround itself with a
      zareba like the troops after Osman Digma.'' --R.
                                               Jefferies.