A proof.
A public display of group opinion, such as a protest march.
Expression of one's feelings by outward signs.
The act of demonstrating; showing or explaining something.
A prisoner's act of beating up another prisoner.
An event at which something will be demonstrated.
A show of military force.
Facts or observations presented in support of an assertion.
A body of objectively verifiable facts that are positively indicative of, and/or exclusively concordant with, that one conclusion over any other.
Anything admitted by a court to prove or disprove alleged matters of fact in a trial.
One who bears witness.
To provide evidence for, or suggest the truth of.