- A federal area of eastern united states of america in the Potomac River between Virginia and Maryland. Coextensive with all the town of Washington, it had been established by congressional acts of 1790 and 1791 on a site selected by George Washington.
- The District of Columbia (U.S. national area) could be the federal capital of usa. The town of Washington used to be a municipality inside the District of Columbia until 1871 whenever two entities had been merged. As a result, the region can also be referred to as Washington, D.C.
- the area occupied entirely because of the city of Washington; chosen by George Washington since the site of money of united states of america and created from land ceded by Maryland and Virginia