Evidence

evidence (ˈɛvɪdəns)  n
1. ground for belief or disbelief; data on which to base proof or to establish truth or falsehood
2. a mark or sign that makes evident; indication: his pallor was evidence of ill health.
3. (Law) law matter produced before a court of law in an attempt to prove or disprove a point in issue, such as the statements of witnesses, documents, material objects, etc.