Longman Dictionary of Contemporary English homepage

demonstration

noun
     
dem‧on‧stra‧tion S3 W3 [countable]
1 an event at which a large group of people meet to protest or to support something in public
peaceful/violent demonstration
Police opened fire on a peaceful demonstration.
The proposals sparked mass demonstrations.
demonstration against
a demonstration against the government's educational policies
stage/hold a demonstration
Supporters staged a demonstration outside the US embassy.
2 an act of explaining and showing how to do something or how something works
demonstration of
He gave a practical demonstration of the boat's military potential.
a cookery demonstration
3 formal an action that proves that someone or something has a particular ability, quality, or feeling
demonstration of
The high level of calls is a clear demonstration of the need for this service.
a physical demonstration of affection

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