demonstration

noun [C or U] (SHOW)

/ˌdem.ənˈstreɪ.ʃən/

Definition

C1 the act of showing someone how to do something, or how something works: This disaster is a clear demonstration of the need for tighter controls. Let me give you a demonstration of how the camera works. She told us how easy it was to use the computer, then by way of demonstration simply pressed a few keys on the keyboard. We're going to a cookery demonstration tonight.Showing and demonstrating

(Definition of demonstration noun (SHOW) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)