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.
While music from the Campari Lounge boomed into the evening, approximately 100 demonstrators unwound a shroud bearing the names of 60,000 people who have been killed in Gaza since the beginning of the war two and a half years ago. — John Bleasdale, Variety, 9 Aug. 2026 Relations between the powerful church and Pashinyan's government have deteriorated rapidly since 2024, when tens of thousands of demonstrators, led by a high-ranking cleric, called for his ouster. — Arkansas Online, 9 Aug. 2026 That hostility erupted into full view in late May, when demonstrators seeking the bodies of two relatives forced their way into an Ebola treatment facility. — Nimi Princewill, CNN Money, 6 Aug. 2026 Solidarity protests were held in several other cities, while supporters sent food and supplies to demonstrators camped in New Delhi and engaged in hunger strikes. — ABC News, 4 Aug. 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 12 Aug. 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)

More from Merriam-Webster on demonstrator

Thesaurus: All synonyms and antonyms for demonstrator

Nglish: Translation of demonstrator for Spanish Speakers

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