Open English Wordnet
Nouns
(n)presentation, presentment, demonstrationa show or display; the act of presenting something to sight or view“the presentation of new data”, “he gave the customer a demonstration”
(n)demonstrationa show of military force or preparedness“he confused the enemy with feints and demonstrations”
(n)demonstration, manifestationa public display of group feelings (usually of a political nature)“there were violent demonstrations against the war”
(n)demonstration, monstranceproof by a process of argument or a series of proposition proving an asserted conclusion
(n)demonstration, demoa 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”