The chiefs of staff are meeting tomorrow at the White House
<span>come between so as to prevent or alter a result or course of events</span>
Urban means city or surrounded by many. Rural means country or secluded (set off by itself). Therefore, these two are antonyms. A synonym for Urban would be city, crowded, large population. A synonym for Rural would be country, seclusion, less populated. Since antonyms are the opposite, that makes urban and rural antonyms.
