verb, -trat⋅ed, -trat⋅ing.| 1. | to decide as arbitrator or arbiter; determine. |
| 2. | to submit to arbitration; settle by arbitration: to arbitrate a dispute. |
| 3. | to act as arbitrator or arbiter; decide between opposing or contending parties or sides. |
| 4. | to submit a matter to arbitration. |