Source : Webster's Revised Unabridged Dictionary (1913)

Newfoundland \New"found*land`\ (?, often ?), n.
   1. An island on the coast of British North America, famed for
      the fishing grounds in its vicinity.

   2. A Newfoundland dog. --Tennyson.

   {Newfoundland dog} (Zo["o]l.), a breed of large dogs, with
      shaggy hair, which originated in Newfoundland, noted for
      intelligence, docility, and swimming powers.

Source : WordNet®

Newfoundland
     n 1: breed of very large heavy usually black dogs developed in
          Newfoundland; highly intelligent and vigorous swimmers
     2: an island in the north Atlantic