1. a show or display; the act of presenting something to sight or view

- he gave the customer a demonstration

Similar word(s): presentation, presentment

Definition categories: act, show

2. a show of military force or preparedness

- he confused the enemy with feints and demonstrations

Definition categories: act, show

3. a public display of group feelings (usually of a political nature)

- there were violent demonstrations against the war

Similar word(s): manifestation

Definition categories: act, dissent, objection, protest

4. proof by a process of argument or a series of proposition proving an asserted conclusion

Similar word(s): monstrance

Definition categories: communication, proof

5. a visual presentation showing how something works

- the lecture was accompanied by dramatic demonstrations

- the lecturer shot off a pistol as a demonstration of the startle response

Similar word(s): demo

Definition categories: communication

Sentences with demonstration as a noun:

- I have to give a demonstration to the class tomorrow, and I'm ill-prepared.