In the first sense, the term event is used in
physics, theories about physics, and in theories that attempt to introduce a
more general kind of entity to generalize about than facts. A linguistic
parallel here is that facts are expressed by
statements, whereas events are
expressed by terms.
In the second sense, the term event is especially used in
probability theory and statistics, where it
is used to refer to possible outcomes in what then is often called the space
of events. Thus, one may speak of the event of drawing the ace of spades from
a pack of cards.