From WordNet (r) 3.0 (2006):
event
n 1: something that happens at a given place and time
2: a special set of circumstances; "in that event, the first
possibility is excluded"; "it may rain in which case the
picnic will be canceled" [syn: event, case]
3: a phenomenon located at a single point in space-time; the
fundamental observational entity in relativity theory
4: 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" [syn:
consequence, effect, outcome, result, event,
issue, upshot]