American state - one of the 50 states of the United States

Mid-Atlantic states - a region of the eastern United States comprising New York and New Jersey and Pennsylvania and Delaware and Maryland

Aberdeen - a town in northeastern Maryland

Annapolis, capital of Maryland - state capital of Maryland; site of the United States Naval Academy

Baltimore - the largest city in Maryland; a major seaport and industrial center

Fort George G. Meade, Fort George Gordon Meade, Fort Meade - an Army base in Maryland; headquarters of the National Security Agency

Frederick - a town in northern Maryland west of Baltimore

Hagerstown - a town of northern Maryland

Chesapeake Bay - a large inlet of the North Atlantic between Virginia and Maryland; fed by Susquehanna River

Potomac, Potomac River - 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

Susquehanna, Susquehanna River - a river in the northeastern United States that rises in New York and flows southward through Pennsylvania and Maryland into Chesapeake Bay

Colony - one of the 13 British colonies that formed the original states of the United States