n.
1.an unknown and unpredictable phenomenon that causes an event to result one way rather than another
2.a large amount of wealth or prosperity
3.an unknown and unpredictable phenomenon that leads to a favorable outcome
4.your overall circumstances or condition in life (including everything that happens to you)
Idiom of the Day
get worked up about/over (something)
to get excited or angry about something
My friend always gets worked up about his problems at work.