coextensive

Etymology
From.

Adjective

 * 1) Having the same spatial limits or boundaries; sharing the same area.
 * The city and county of San Francisco are coextensive.
 * 1) Occurring over the same period of time; contemporaneous.
 * 2)  Having the same extension—the object or set of objects to which a term refers.
 * 1)  Having the same extension—the object or set of objects to which a term refers.
 * 1)  Having the same extension—the object or set of objects to which a term refers.