demonstrator
/ˈdɛmənstreɪtər/
noun
- A person who takes part in a public protest or march to show support for or opposition to something.
- Thousands of demonstrators gathered in the city square to demand climate action.
- Police spoke with the demonstrators to ensure the protest remained safe.
- The demonstrators carried signs and chanted peacefully.
- A person who shows how something works or is done, especially a product or a scientific process.
- The robot demonstrator explained each movement of the machine.
- The demonstrator at the store showed customers how to use the new blender.
- A lab demonstrator helped the students with the chemistry experiment.
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