A person appointed, or chosen, by parties to determine a controversy between them.
Any person who has the power of judging and determining, or ordaining, without control; one whose power of deciding and governing is not limited.
someone chosen to judge and decide a disputed issue
a chosen one who has a second chance at be a hero
A person chosen voluntarily by parties to a dispute to decide the difference between them (In English Law, he is called "arbitrator").
One chosen or appointed, by mutual consent of parties in dispute, to decide matters.
A tournament official who arbitrates disputes and performs other duties such as keeping the score when players are under time pressure.
One who is chosen to judge a situation.