surround
noun.
the area in which something exists or lives
the country--the flat agricultural surround
Synonym: environment, environs, surroundings
verb.
extend on all sides of simultaneously; encircle
The forest surrounds my property
Synonym: border, environ, ring, skirt
verb.
envelop completely
smother the meat in gravy
Synonym: smother
verb.
surround so as to force to give up
The Turks besieged Vienna
Synonym: beleaguer, besiege, circumvent, hem in
verb.
surround with a wall in order to fortify
Synonym: wall, palisade, fence in, fence