Search Result for "keystone state":
Wordnet 3.0

NOUN (1)

1. a Mid-Atlantic state; one of the original 13 colonies;
[syn: Pennsylvania, Keystone State, PA]



The Collaborative International Dictionary of English v.0.48:

Keystone State \Key"stone` State\
   Pennsylvania; -- a nickname alluding to its having been the
   central one of the 13 original United States, at the time of
   formation of the Constitution.
   [Webster 1913 Suppl.]


WordNet (r) 3.0 (2006):

Keystone State
    n 1: a Mid-Atlantic state; one of the original 13 colonies [syn:
         Pennsylvania, Keystone State, PA]