U.K.

from WordNet (r) 3.0 (2006)
U.K.
    n 1: a monarchy in northwestern Europe occupying most of the
         British Isles; divided into England and Scotland and Wales
         and Northern Ireland; `Great Britain' is often used loosely
         to refer to the United Kingdom [syn: {United Kingdom},
         {UK}, {U.K.}, {Britain}, {United Kingdom of Great Britain
         and Northern Ireland}, {Great Britain}]