When protesters get together to show their presence and support, this is an example of a demonstration.
When a child shows the class how his science project works, this is an example of a demonstration.
A demonstration of grief.
I have to give a demonstration to the class tomorrow, and I'm ill-prepared.
Origin of demonstration
- From Old French demonstration, from Latin demonstrationem, from demonstrare (“show or explain”), from de- (“of or concerning”) + monstrare (“show”).