What is the meaning of 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..
  • synonyms: roadblock
• A barrier (usually thrown up hastily) to impede the advance of an enemy.
  • usage: "they stormed the barricade"

verb

• Render unsuitable for passage.
  • usage: "block the way"; "barricade the streets"; "stop the busy road"
  • synonyms: block, blockade, stop, block off, block up, bar
• Prevent access to by barricading.
  • usage: "The street where the President lives is always barricaded"
• Block off with barricades.
  • synonyms: barricado