Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun potomac_river
1 sense of potomac river
Sense 1
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)
INSTANCE OF=> river -- (a large natural stream of water (larger than a creek); "the river was navigable for 50 miles")