The Collaborative International Dictionary of English v.0.48:

Evidence \Ev"i*dence\, v. t. [imp. & p. p. Evidenced; p. pr. &
   vb. n. Evidencing.]
   To render evident or clear; to prove; to evince; as, to
   evidence a fact, or the guilt of an offender. --Milton.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Evidence \Ev"i*dence\, n. [F. ['e]vidence, L. Evidentia. See
   Evident.]
   1. That which makes evident or manifest; that which
      furnishes, or tends to furnish, proof; any mode of proof;
      the ground of belief or judgement; as, the evidence of our
      senses; evidence of the truth or falsehood of a statement.
      [1913 Webster]

            Faith is . . . the evidence of things not seen.
                                                  --Heb. xi. 1.
      [1913 Webster]

            O glorious trial of exceeding love
            Illustrious evidence, example high.   --Milton.
      [1913 Webster]

   2. One who bears witness. [R.] "Infamous and perjured
      evidences." --Sir W. Scott.
      [1913 Webster]

   3. (Law) That which is legally submitted to competent
      tribunal, as a means of ascertaining the truth of any
      alleged matter of fact under investigation before it;
      means of making proof; -- the latter, strictly speaking,
      not being synonymous with evidence, but rather the effect
      of it. --Greenleaf.
      [1913 Webster]

   Circumstantial evidence, Conclusive evidence, etc. See
      under Circumstantial, Conclusive, etc.

   Crown's evidence, King's evidence, or Queen's evidence,
      evidence for the crown, in English courts; equivalent to
      state's evidence in American courts. [Eng.]

   State's evidence, evidence for the government or the
      people. [U. S. ]

   To turn King's evidence To turn Queen's evidence, or To
   turn State's evidence, to confess a crime and give evidence
      against one's accomplices.

   Syn: Testimony; proof. See Testimony.
        [1913 Webster]

WordNet (r) 3.0 (2006):

evidence
    n 1: your basis for belief or disbelief; knowledge on which to
         base belief; "the evidence that smoking causes lung cancer
         is very compelling" [syn: evidence, grounds]
    2: an indication that makes something evident; "his trembling
       was evidence of his fear"
    3: (law) all the means by which any alleged matter of fact whose
       truth is investigated at judicial trial is established or
       disproved
    v 1: provide evidence for; stand as proof of; show by one's
         behavior, attitude, or external attributes; "His high fever
         attested to his illness"; "The buildings in Rome manifest a
         high level of architectural sophistication"; "This decision
         demonstrates his sense of fairness" [syn: attest,
         certify, manifest, demonstrate, evidence]
    2: provide evidence for; "The blood test showed that he was the
       father"; "Her behavior testified to her incompetence" [syn:
       testify, bear witness, prove, evidence, show]
    3: give evidence; "he was telling on all his former colleague"
       [syn: tell, evidence]