barricade
noun
a barrier set up by police to stop traffic on a street or road in order to catch a fugitive or inspect traffic etc.
Synonymsroadblocka barrier (usually thrown up hastily) to impede the advance of an enemy
“they stormed the barricade”
verb
render unsuitable for passage
“block the way”
“barricade the streets”
prevent access to by barricading
“The street where the President lives is always barricaded”
block off with barricades
Synonymsbarricado
Source: WordNet 3.1, Princeton University