<p><strong>Verb</strong></p><ul><li>to block or close up with an obstacle; make difficult to pass</li><li>to interrupt, hinder, or oppose the passage, progress, course, etc., of</li><li>to block from sight; to be in the way of (a view, passage, etc.)</li></ul><p><strong>Synonyms</strong></p><ul><li>arrest</li><li>retard</li><li>slow</li><li>check</li><li>prevent</li><li>impede</li><li>hinder</li><li>clog</li><li>choke</li><li>stop</li></ul><p><strong>Antonyms</strong></p><ul><li>further</li><li>encourage</li></ul>