It's a barrier used to block or defend a certain place. Barricades nowadays have many common uses. Most common uses for barricades is for roadway use, construction sites, security purposes etc For example, a barricade used to hold a crowd back would be lower than that of a barricade used on a construction site or roadway. On a roadway, the barricade might be a number of boards high, and can also be used to block the sight of the construction from passersby.
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