1. Potomac - Noun
2. Potomac - Proper noun
term sometimes used to refer to Washington, D.C.
a river in the east central United States; rises in West Virginia in the Appalachian Mountains and flows eastward, forming the boundary between Maryland and Virginia, to the Chesapeake Bay
Source: WordNetIf one morning I walked on top of the water across the Potomac River, the headline that afternoon would read: "President Can't Swim." Lyndon B. Johnson
All quiet along the Potomac tonight, no sound save the rush of the river, while soft falls the dew on the face of the dead, the picket's off duty forever. Ethel Lynn Beers
Just as there's garbage that pollutes the Potomac river, there is garbage polluting our culture. We need an Environmental Protection Agency to clean it up. Pat Buchanan
They're building a bridge over the Potomac for all the white liberals fleeing to Virginia. George Wallace
All quiet along the Potomac. George B. McClellan
WASHINGTONIAN, n. A Potomac tribesman who exchanged the privilege of governing himself for the advantage of good government. In justice to him it should be said that he did not want to. Ambrose Bierce