<p><strong>Noun:</strong></p><ul><li>a defensive barrier hastily constructed, as in a street, to stop an enemy</li><li>any barrier that obstructs passage</li></ul><p><strong>Verb:</strong></p><ul><li>to obstruct or block with a barricade, such as barricading the streets to prevent an attack</li><li>to shut in and defend with or as if with a barricade, like the rebels barricading themselves in the old city</li></ul>