something that happens at a given place and time
"The annual music festival is an event happening next weekend in Central Park."
a phenomenon located at a single point in space-time; the fundamental observational entity in relativity theory
"In the framework of special relativity, every flash of light or collision between particles is treated as an event occurring at a precise coordinate in four-dimensional spacetime."
An occurrence; something that happens.
"The sudden thunderstorm was an unexpected event that ruined our picnic plans."
In plain English: An event is something that happens at a specific time and place.
"The local community held an event to celebrate the festival."
Usage: Use "event" to describe any specific incident or occurrence, such as a scheduled gathering, an accident, or a notable moment in history. It refers to the thing itself rather than the process of it happening.
To occur, take place.
"The steam began to event slowly as the hot tea sat untouched on the windowsill."
To be emitted or breathed out; to evaporate.
In plain English: To event something means to make it happen or cause it to occur.
"The sudden noise caused an event in the quiet room that made everyone jump."
Usage: The verb form of "event" is archaic and rarely used in modern English; instead, use synonyms like "exude," "emit," or "evaporate." In contemporary writing, treat "event" strictly as a noun referring to an occurrence.
The word event comes from the Middle French event, which was borrowed from Latin meaning "an occurrence." It originally described something that happened or fell out before entering English with this same sense of a notable incident.