1. Something that gives a sign or proof of the existence or the truth of something, or that helps any one to come to a particular conclusion: The doctor told Mayr that there is no evidence that this illness is related to diet.
2. The objects, or information, used to prove or to suggest the guilt of someone accused of a crime: So far, the police have no evidence that Hank's brother committed the robbery.
3. The oral, or written statements, of witnesses and other people involved in a trial or official inquiry.
4. A thing, or things, helpful in forming a conclusion or judgment.
5. Etymology: "appearance from which inferences may be drawn", from Old French evidence, from Late Latin evidentia, "proof"; originally "distinction, clearness" from Latin evidentem, from ex-, "fully, out of" + videntem, videre, "to see".

An attempt, whether successful or not, to conceal or to hide evidence of wrong-doing, some error, incompetence, or any other embarrassing information.

A statement or other evidence that tends to justify, excuse, or clear a defendant from an alleged fault or guilt.

Examination and analysis of scientific evidence from a crime scene.

1. The deliberate hiding, non-disclosure, or suppression of essential facts or circumstances that someone is legally or morally required to reveal; especially, with the intention to deceive or to defraud a person in a contractual arrangement.
2. Concealment, destruction or withholding of, or refusal to give, material evidence which a person has or knows and is legally or morally boung to reveal.

It is normally considered an '"obstruction of justice" which is a criminal offense.

3. A deliberate attempt to withhold information or to conceal an act to avoid a contractual responsibility.

Fraudulent concealment that is applied to health care providers comes up when a treating doctor conceals from an aggrieved patient that a previous treating doctor may have committed malpractice.