Definition of "event"
An occurrence; something that happens.
An end result; an outcome (now chiefly in phrases).
A point in spacetime having three spatial coordinates and one temporal coordinate.
A possible action that the user can perform that is monitored by an application or the operating system (event listener). When an event occurs an event handler is called which performs a specific task.
A set of some of the possible outcomes; a subset of the sample space.