say it: dem-uhn-STRAY-shuhn
demonstration is a noun meaning "a show or display; the act of presenting something to sight or view". It carries 5 recorded senses.
a show or display; the act of presenting something to sight or view
“the presentation of new data”
“he gave the customer a demonstration”
a show of military force or preparedness
“he confused the enemy with feints and demonstrations”
military
a public display of group feelings (usually of a political nature)
“there were violent demonstrations against the war”
politics
proof by a process of argument or a series of proposition proving an asserted conclusion
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”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for demonstration come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.