WordNet (r) 3.0 (2006):

Willis
    n 1: English physician who was a pioneer in the study of the
         brain (1621-1675) [syn: Willis, Thomas Willis]

U.S. Gazetteer Places (2000):

Willis, KS -- U.S. city in Kansas
   Population (2000):    69
   Housing Units (2000): 29
   Land area (2000):     0.168593 sq. miles (0.436653 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.168593 sq. miles (0.436653 sq. km)
   FIPS code:            79400
   Located within:       Kansas (KS), FIPS 20
   Location:             39.724165 N, 95.505479 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Willis, KS
    Willis


U.S. Gazetteer Places (2000):

Willis, TX -- U.S. city in Texas
   Population (2000):    3985
   Housing Units (2000): 1374
   Land area (2000):     3.290877 sq. miles (8.523333 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    3.290877 sq. miles (8.523333 sq. km)
   FIPS code:            79408
   Located within:       Texas (TX), FIPS 48
   Location:             30.422640 N, 95.478829 W
   ZIP Codes (1990):     77378
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Willis, TX
    Willis