cause
/kɔːz/
(often with of, typically of adverse results) The source of, or reason for, an event or action; that which produces or effects a result.
They identified a burst pipe as the cause of the flooding.
(especially with for and a bare noun) Sufficient reason for a state, as of emotion.
The end of the war was a cause for celebration.
A goal, aim or principle, especially one which transcends purely selfish ends.
Sake; interest; advantage.
Any subject of discussion or debate; a matter; an affair.
A suit or action in court; any legal process by which a party endeavors to obtain his claim, or what he regards as his right; case; ground of action.