Source : Webster's Revised Unabridged Dictionary (1913)

Sink \Sink\, n.
   1. A drain to carry off filthy water; a jakes.

   2. A shallow box or vessel of wood, stone, iron, or other
      material, connected with a drain, and used for receiving
      filthy water, etc., as in a kitchen.

   3. A hole or low place in land or rock, where waters sink and
      are lost; -- called also {sink hole}. [U. S.]

   {Sink hole}.
      (a) The opening to a sink drain.
      (b) A cesspool.
      (c) Same as {Sink}, n., 3.