1. 
[syn: Potomac, Potomac River]
2.  term sometimes used to refer to Washington, D.C.; 
WordNet (r) 3.0 (2006):
Potomac
    n 1: 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 [syn: Potomac, Potomac River]
    2: term sometimes used to refer to Washington, D.C.
U.S. Gazetteer Places (2000):
Potomac, IL -- U.S. village in Illinois
   Population (2000):    681
   Housing Units (2000): 277
   Land area (2000):     0.483486 sq. miles (1.252222 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.483486 sq. miles (1.252222 sq. km)
   FIPS code:            61366
   Located within:       Illinois (IL), FIPS 17
   Location:             40.306351 N, 87.799987 W
   ZIP Codes (1990):     61865
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Potomac, IL
    Potomac
U.S. Gazetteer Places (2000):
Potomac, MD -- U.S. Census Designated Place in Maryland
   Population (2000):    44822
   Housing Units (2000): 15960
   Land area (2000):     25.177686 sq. miles (65.209904 sq. km)
   Water area (2000):    1.378819 sq. miles (3.571125 sq. km)
   Total area (2000):    26.556505 sq. miles (68.781029 sq. km)
   FIPS code:            63300
   Located within:       Maryland (MD), FIPS 24
   Location:             39.022694 N, 77.186423 W
   ZIP Codes (1990):     20854
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Potomac, MD
    Potomac