barricade

Noun

• a barrier (usually thrown up hastily) to impede the advance of an enemy
  • they stormed the barricade
    

• a barrier set up by police to stop traffic on a street or road in order to catch a fugitive or inspect traffic etc.

Verb

• block off with barricades

• prevent access to by barricading
  • The street where the President lives is always barricaded
    

• render unsuitable for passage
  • block the way
    
  • barricade the streets
    
  • stop the busy road
    

Related words

• Synonyms: 
  roadblock , barricado , block , blockade , stop , block off , block up , bar