demonstration

US /ˌdem.ənˈstreɪ.ʃən/
UK /ˌdem.ənˈstreɪ.ʃən/
"demonstration" picture
1.

an act of showing how something works or how to do something

:
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The chef gave a cooking demonstration.
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We attended a product demonstration at the store.
:
displayexhibitionpresentationshowillustration
2.

a public meeting or march protesting against something or expressing views on a political issue

:
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Thousands of people joined the peaceful demonstration.
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The students organized a demonstration against tuition fee increases.
:
protestmarchrallypicketwalkout
:
demonstrate