The Oxford Thesaurus An A-Z Dictionary of Synonyms - demonstratev.

1) show, prove, make evident, establish, evince, evidence, exhibit, manifest: The increase in arrests demonstrates the efficiency of the police. 2) display, explain, expose, describe, present; illustrate: The salesman demonstrated the new camera for us. 3) picket, march, parade, rally, protest: More than 5000 people demonstrated against the fraudulent election.