Wordnet 3.0
NOUN (1)
1. 
 a town in Kent in southeastern England; 
 site of the cathedral where Thomas a Becket was martyred in 1170; 
 seat of the archbishop and primate of the Anglican Church; 
The Collaborative International Dictionary of English v.0.48:
Canterbury \Can"ter*bur*y\ (k[a^]n"t[~e]r*b[e^]r*r[y^]), prop.
   n.
   1. A city in England, giving its name various articles. It is
      the seat of the Archbishop of Canterbury (primate of all
      England), and contains the shrine of Thomas [`a] Becket,
      to which pilgrimages were formerly made.
      [1913 Webster]
   2. A stand with divisions in it for holding music, loose
      papers, etc.
      [1913 Webster]
   Canterbury ball (Bot.), a species of Campanula of several
      varieties, cultivated for its handsome bell-shaped
      flowers.
   Canterbury gallop, a gentle gallop such as was used by
      pilgrims riding to Canterbury; a canter.
   Canterbury tale, one of the tales which Chaucer puts into
      the mouths of certain pilgrims to Canterbury. Hence, any
      tale told by travelers to pass away the time.
      [1913 Webster]
WordNet (r) 3.0 (2006):
Canterbury
    n 1: a town in Kent in southeastern England; site of the
         cathedral where Thomas a Becket was martyred in 1170; seat
         of the archbishop and primate of the Anglican Church