/ ˈɪnsɪdənt; NAmE / noun
1.
[ C ] something that happens, especially sth unusual or unpleasant :
His bad behaviour was just an isolated incident.
One particular incident sticks in my mind.
2.
[ C , U ] a serious or violent event, such as a crime, an accident or an attack :
There was a shooting incident near here last night.
The demonstration passed off without incident .
3.
[ C ] a disagreement between two countries, often involving military forces :
a border / diplomatic incident
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WORD ORIGIN
late Middle English : via Old French from Latin incident- falling upon, happening to, from the verb incidere , from in- upon + cadere to fall.