WordNet (r) 3.0 (2006):

Klein
    n 1: German mathematician who created the Klein bottle
         (1849-1925) [syn: Klein, Felix Klein]
    2: United States psychoanalyst (born in Austria) who was the
       first to specialize in the psychoanalysis of small children
       (1882-1960) [syn: Klein, Melanie Klein]
    3: United States fashion designer noted for understated fashions
       (born in 1942) [syn: Klein, Calvin Klein, Calvin Richard
       Klein]

U.S. Gazetteer Places (2000):

Klein, MT -- U.S. Census Designated Place in Montana
   Population (2000):    188
   Housing Units (2000): 90
   Land area (2000):     12.852306 sq. miles (33.287319 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    12.852306 sq. miles (33.287319 sq. km)
   FIPS code:            41050
   Located within:       Montana (MT), FIPS 30
   Location:             46.402844 N, 108.548378 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Klein, MT
    Klein