Source : Webster's Revised Unabridged Dictionary (1913)

Acquittance \Ac*quit"tance\, n. [OF. aquitance, fr. aquiter. See
   {Acquit}.]
   1. The clearing off of debt or obligation; a release or
      discharge from debt or other liability.

   2. A writing which is evidence of a discharge; a receipt in
      full, which bars a further demand.

            You can produce acquittances For such a sum, from
            special officers.                     --Shak.

Acquittance \Ac*quit"tance\, v. t.
   To acquit. [Obs.] --Shak.

Source : WordNet®

acquittance
     n : a legal document evidencing the discharge of a debt or
         obligation [syn: {release}]