This is the 6961st most frequent Russian word.
арбитражным
"Arbitral" or "related to arbitration."
In this sentence, 'арбитражного' is an adjective describing 'суда' (court), specifying its type as 'arbitration court'.
Все решения арбитражного суда были окончательными.
All decisions of the arbitration court were final.
The term 'арбитражных' describes 'органов' (bodies), denoting their function or specialization in arbitration.
Он прошёл курс о работе арбитражных органов.
He completed a course on the operation of arbitration bodies.
Here, 'арбитражные' is used as an adjective describing 'дела' (cases), meaning 'related to arbitration'.