demonstrator

noun

dem·​on·​stra·​tor ˈde-mən-ˌstrā-tər How to pronounce demonstrator (audio)
Synonyms of demonstratornext
: one that demonstrates:
a
: a product (such as an automobile) used to demonstrate performance or merits to prospective buyers
b
: a person who engages in a public demonstration

Examples of demonstrator in a Sentence

Thousands of demonstrators marched through the streets.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Both urged demonstrators to make their voices heard at the ballot box. — Sarah Cutler, Idaho Statesman, 19 Oct. 2026 Students in Albania join anti-corruption protests In Albania, anti-government protests continued Sunday for a sixth consecutive day in Tirana, featuring more clashes between demonstrators and police. — Teresa Medrano, Los Angeles Times, 19 Oct. 2026 Carl Court / Getty In cities across the country, demonstrators set fire to newsstands and smashed windows. — Max Butterworth, NBC news, 19 Oct. 2026 French demonstrators blocked the entrance doors to the Louvre this morning, amid nationwide protests over the state of public schools and the rising cost of living. — News Desk, Artforum, 19 Oct. 2026 See All Example Sentences for demonstrator

Word History

Etymology

demonstrate + -or entry 1

First Known Use

1593, in the meaning defined above

Time Traveler
The first known use of demonstrator was in 1593

Phrases Containing demonstrator

Rhymes for demonstrator

See All Rhymes for demonstrator

Browse Nearby Words

demonstrative
demonstrator
demonym
See all Nearby Words

Cite this Entry

“Demonstrator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/demonstrator. Accessed 21 Oct. 2026.

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Kids Definition

demonstrator

noun
dem·​on·​stra·​tor ˈdem-ən-ˌstrāt-ər How to pronounce demonstrator (audio)
1
: a person who makes or takes part in a demonstration
2
: a manufactured article (as an automobile) used for purposes of demonstration

Medical Definition

demonstrator

noun
dem·​on·​stra·​tor ˈdem-ən-ˌstrāt-ər How to pronounce demonstrator (audio)
: a teacher or teacher's assistant who demonstrates principles or theories studied (as by dissection, experiment, or chemical preparation)

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