The Collaborative International Dictionary of English v.0.48:

Wye \Wye\, n.; pl. Wyes.
   [1913 Webster]
   1. The letter Y.
      [1913 Webster]

   2. A kind of crotch. See Y, n.
      (a) .
          [1913 Webster]

WordNet (r) 3.0 (2006):

wye
    n 1: the 25th letter of the Roman alphabet [syn: Y, y,
         wye]

U.S. Gazetteer Places (2000):

Wye, MT -- U.S. Census Designated Place in Montana
   Population (2000):    381
   Housing Units (2000): 126
   Land area (2000):     3.126905 sq. miles (8.098646 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    3.126905 sq. miles (8.098646 sq. km)
   FIPS code:            81980
   Located within:       Montana (MT), FIPS 30
   Location:             46.950775 N, 114.130810 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Wye, MT
    Wye