The act of demonstrating; an exhibition; proof; especially, proof beyond the possibility of doubt; indubitable evidence, to the senses or reason.
- The act of showing or making evident.
- Conclusive evidence; proof.
- An illustration or explanation, as of a theory or product, by exemplification or practical application.
- A manifestation, as of one's feelings.
- A public display of group opinion, as by a rally or march: peace demonstrations.