WordNet (r) 3.0 (2006):

Sinclair
    n 1: United States writer whose novels argued for social reform
         (1878-1968) [syn: Sinclair, Upton Sinclair, Upton
         Beall Sinclair]
    2: English electrical engineer who founded a company that
       introduced many innovative products (born in 1940) [syn:
       Sinclair, Clive Sinclair, Sir Clive Marles Sinclair]

U.S. Gazetteer Places (2000):

Sinclair, WY -- U.S. town in Wyoming
   Population (2000):    423
   Housing Units (2000): 211
   Land area (2000):     2.431190 sq. miles (6.296753 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    2.431190 sq. miles (6.296753 sq. km)
   FIPS code:            71150
   Located within:       Wyoming (WY), FIPS 56
   Location:             41.780782 N, 107.116826 W
   ZIP Codes (1990):     82334
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Sinclair, WY
    Sinclair