Arbitrator/ˈɑːrbɪtreɪtər/ Definition 1 of 2Pro Tip 1/3Neutral Party An arbitrator must not favor any side in a disagreement. The neutral arbitrator listened to both parties before making a decision. Pro Tip 2/3Voluntary Choice The people in disagreement usually choose the arbitrator together. Both companies agreed on a specific arbitrator to handle their dispute. Pro Tip 3/3Binding Decision The arbitrator's decision is often final and cannot be disputed. They were bound by the arbitrator's ruling and could not appeal.