The Collaborative International Dictionary of English v.0.48:

Handle \Han"dle\, n. [AS. handle. See Hand.]
   1. That part of vessels, instruments, etc., which is held in
      the hand when used or moved, as the haft of a sword, the
      knob of a door, the bail of a kettle, etc.
      [1913 Webster]

   2. That of which use is made; the instrument for effecting a
      purpose; a tool. --South.
      [1913 Webster]

   To give a handle, to furnish an occasion or means.
      [1913 Webster]