Source : Webster's Revised Unabridged Dictionary (1913)

Innocence \In"no*cence\, n. [F. innocence, L. innocentia. See
   {Innocent}.]
   1. The state or quality of being innocent; freedom from that
      which is harmful or infurious; harmlessness.

   2. The state or quality of being morally free from guilt or
      sin; purity of heart; blamelessness.

            The silence often of pure innocence Persuades when
            speaking fails.                       --Shak.

            Banished from man's life his happiest life,
            Simplicity and spotless innocence!    --Milton.

   3. The state or quality of being not chargeable for, or
      guilty of, a particular crime or offense; as, the
      innocence of the prisoner was clearly shown.

   4. Simplicity or plainness, bordering on weakness or
      silliness; artlessness; ingenuousness. --Chaucer. Shak.

   Syn: Harmlessness; innocuousness; blamelessness; purity;
        sinlessness; guiltlessness.

Source : WordNet®

innocence
     n 1: the quality of innocent naivete [syn: {artlessness}, {ingenuousness},
           {naturalness}]
     2: the state of being free from sin or moral wrong; lacking a
        knowledge of evil [syn: {purity}, {sinlessness}]
     3: a state or condition of being innocent of a specific crime
        or offense; "the trial established his innocence" [ant: {guilt}]