verb. ['sɝˈaʊnd'] extend on all sides of simultaneously; encircle.
verb. ['sɝˈaʊnd'] envelop completely.
verb. ['sɝˈaʊnd'] surround so as to force to give up.
verb. ['sɝˈaʊnd'] surround with a wall in order to fortify.
noun. ['sɝˈaʊnd'] the area in which something exists or lives.