The Collaborative International Dictionary of English v.0.48:

Ky \Ky\, n. pl.
   Kine. [Scot.] See Kee, Kie, and Kine.
   [1913 Webster]

WordNet (r) 3.0 (2006):

KY
    n 1: a state in east central United States; a border state
         during the American Civil War; famous for breeding race
         horses [syn: Kentucky, Bluegrass State, KY]

The Free On-line Dictionary of Computing (30 December 2018):

ky

    The country code for the Cayman Islands.

   (1999-01-27)