The Collaborative International Dictionary of English v.0.48:

Ballot \Bal"lot\ (b[a^]l"l[u^]t), n. [F. ballotte, fr. It.
   ballotta. See Ball round body.]
   [1913 Webster]
   1. Originally, a ball used for secret voting. Hence: Any
      printed or written ticket used in voting.
      [1913 Webster]

   2. The act of secret voting, whether by balls, written or
      printed ballots or tickets, or by use of a voting machine;
      the system of voting secretly.
      [1913 Webster +PJC]

            The insufficiency of the ballot.      --Dickens.
      [1913 Webster]

   3. The whole number of votes cast at an election, or in a
      given territory or electoral district.
      [1913 Webster]

   4. the official list of candidates competing in an election.
      There are no women on the ballot.
      [1913 Webster]

   Ballot box,
      (a) a box for receiving ballots.
      (b) the act, process or system of voting secretly; same as
          ballot[2]. "The question will be resolved by the
          ballot box."
          [1913 Webster]

WordNet (r) 3.0 (2006):

ballot box
    n 1: a box where voters deposit their ballots