barricade

(n) a line or pile of objects put together to stop people from entering/exiting the place

e.g. A few protestors broke through the police barricade and rushed towards the site.

synonyms: barrier, obstacle, blockade

other word forms: nil

(v) to block or build a barricade across, around, or in front of something

e.g. “Barricade the doors! We cannot let the enemy enter the great hall!” The king bellowed at his knights.

synonyms: obstruct, fortify

other word forms: barricading (v)