An example of to demonstrate is to show someone how to cook a meal.
Demonstrated the laws of physics with laboratory equipment.
The salesperson plugged in and demonstrated the vacuum cleaner.
Described the dance step, then took a partner and demonstrated.
Demonstrated against tax hikes.
An example of to demonstrate is to explain something clearly to make a point.
An example of to demonstrate is to show support for an issue by joining a picket line.
Demonstrated her skill as a gymnast; demonstrate affection by hugging.
Demonstrate a proposition.