surround
/sə-ˈrau̇nd/
verb
to enclose on all sides : envelop
to enclose so as to cut off communication or retreat : invest
to form or be a member of the entourage of
flatterers who surround the king
noun
something (such as a border or ambient environment) that surrounds
from urban centre to rural surround
noun
sound reproduction that often uses three or more transmission channels to enhance the illusion of a live hearing