Read the dictionary definition of demonstration. All definitions for this word.
1. a show or display; the act of presenting something to sight or view
1. the presentation of new data
2. he gave the customer a demonstration
2. a show of military force or preparedness
1. he confused the enemy with feints and demonstrations
3. a public display of group feelings (usually of a political nature)
1. there were violent demonstrations against the war
4. proof by a process of argument or a series of proposition proving an asserted conclusion
5. a visual presentation showing how something works
1. the lecture was accompanied by dramatic demonstrations
2. the lecturer shot off a pistol as a demonstration of the startle response