ar ‧ bi ‧ trate /ˈɑːbətreɪt, ˈɑːbɪtreɪt $ ˈɑːr-/ BrE AmE verb [intransitive and transitive]
[ Date: 1500-1600 ; Language: Latin ; Origin: past participle of arbitrari , from arbiter ; ⇨ ↑ arbiter ]
to officially judge how an argument between two opposing sides should be settled
arbitrate between
A committee will arbitrate between management and unions.
arbitrate in
The tribunal arbitrates in disputes.
—arbitrator noun [countable]