1.Definition: a phenomenon located at a single point in space-time; the fundamental observational entity in relativity theory

Category: General

2.Definition: a phenomenon that follows and is caused by some previous phenomenon

"The magnetic effect was greater when the rod was lengthwise", "His decision had depressing consequences for business", "He acted very wise after the event"

Related Noun(s):consequence, effect, issue, outcome, result, upshot

Category: General

3.Definition: a special set of circumstances

"In that event, the first possibility is excluded", "It may rain in which case the picnic will be canceled"

Related Noun(s):case

Category: General

4.Definition: something that happens at a given place and time

Category: General