Source : Webster's Revised Unabridged Dictionary (1913)

Surround \Sur*round"\, v. t. [imp. & p. p. {Surrounded}; p. pr.
   & vb. n. {Surrounding}.] [OF. suronder to overflow, LL.
   superundare; fr. L. super over + undare to rise in waves,
   overflow, fr. unda wave. The English sense is due to the
   influence of E. round. See {Super-}, and {Undulate}, and cf.
   {Abound}.]
   1. To inclose on all sides; to encompass; to environ.

   2. To lie or be on all sides of; to encircle; as, a wall
      surrounds the city.

            But could instead, and ever-during dark Surrounds
            me.                                   --Milton.

   3. To pass around; to travel about; to circumnavigate; as, to
      surround the world. [Obs.] --Fuller.

   4. (Mil.) To inclose, as a body of troops, between hostile
      forces, so as to cut off means of communication or
      retreat; to invest, as a city.

   Syn: To encompass; encircle; environ; invest; hem in; fence
        about.

Source : WordNet®

surrounded
     adj : confined on all sides; "a camp surrounded by enemies"; "the
           encircled pioneers" [syn: {encircled}]