barricade

barricade (http://definr.com/barricade)

     n 1: a barrier set up by police to stop traffic on a street or
          road in order to catch a fugitive or inspect traffic
          etc. [syn: roadblock]
     2: a barrier (usually thrown up hastily so as to impede the
        advance of an enemy); "they enemy stormed the barricade"
     v 1: render unsuitable for passage; "block the way"; "barricade
          the streets" [syn: block, blockade, block off, {block
          up}, bar]
     2: prevent access to by barricading; "The street where the
        President lives is always barricaded"
     3: block off with barricades [syn: barricado]