demonstration

1 ENTRIES FOUND:
demonstration /ˌdɛmənˈstreɪʃən/ noun
plural demonstrations
demonstration
/ˌdɛmənˈstreɪʃən/
noun
plural demonstrations
Britannica Dictionary definition of DEMONSTRATION
1 
: an act of showing someone how something is used or done
[count]
[noncount]
— sometimes used before another noun
2 
: an event in which people gather together in order to show that they support or oppose something or someone
[count]
[noncount]
3 
: an act of showing or proving something
[count]
— often + of
[noncount]

— demonstrational

/ˌdɛmənˈstreɪʃənl̟/ adjective