Source : Webster's Revised Unabridged Dictionary (1913)

Contiguity \Con`ti*gu"i*ty\, n. [Cf. F. contiguit['e], LL.
   contiguitas.]
   The state of being contiguous; intimate association;
   nearness; proximity.

         The convicinity and contiguity of the two parishes.
                                                  --T. Warton.

Source : WordNet®

contiguity
     n : the attribute of being so near as to be touching [syn: {adjacency},
          {contiguousness}]