[1] : The Collaborative International Dictionary of English v.0.48

surround \surround"\, 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.
      1913 webster

   2. to lie or be on all sides of; to encircle; as, a wall
      surrounds the city.
      1913 webster

            but could instead, and ever-during dark
            surrounds me.                         --milton.
      1913 webster

   3. to pass around; to travel about; to circumnavigate; as, to
      surround the world. obs. --fuller.
      1913 webster

   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.
      1913 webster

   syn: to encompass; encircle; environ; invest; hem in; fence
        about.
        1913 webster
see also:
surrounded surrounding super- undulate abound 

[2] : WordNet (r) 2.0

surrounded
     adj : confined on all sides; "a camp surrounded by enemies"; "the
           encircled pioneers" syn: encircled
see also:
encircled 

[3] : Moby Thesaurus II by Grady Ward, 1.0

23 moby thesaurus words for "surrounded":
   circumscribed, circumscript, compassed, defined, definite,
   delimited, demarcated, determinate, determined, encircled,
   enclosed, encompassed, enfolded, enveloped, environed, fixed,
   hedged about, lapped, set, specific, stated, wrapped, wreathed

Surrounded >> S Words
Surrounded, definition of term: Surrounded
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