1. the action or process of showing the existence or truth of something by giving proof or evidence
2. a public meeting or march protesting against something or expressing views on a political issue
3. the action or process of showing how something works or is done

Examples

• The scientist provided a clear demonstration of the theory through experiments.
• Thousands gathered for a peaceful demonstration against the new policy.
• The chef gave a cooking demonstration at the food festival.
• Her success was a demonstration of hard work and dedication.
• Students organized a demonstration to protest tuition increases.
• The software demonstration convinced us to purchase the program.
• The math teacher used visual aids as a demonstration of the concept.