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"
a phenomenon located at a single point in space-time
the fundamental observational entity in relativity theory
a special set of circumstances
"in that event, the first possibility is excluded"
"it may rain in which case the picnic will be canceled"
something that happens at a given place and time