noun

A barricade is an object or structure used to block or impede the passage of people, vehicles, or other things. It is typically put up to control or regulate the movement of people, or to provide security or protection from danger. Barricades can be made of various materials, such as concrete, metal, or wood, and may be permanent or temporary. Examples of barricades include police barriers at a crime scene, fences around a construction site, or roadblocks during a demonstration.

Example

1. The protesters set up a barricade to block the entrance to the government building.
2. The police used their vehicles to form a barricade around the perimeter of the crime scene.
3. The soldiers erected a barricade at the border to prevent illegal crossings.