Arbiter
01
a person appointed to judge or decide a disputed issue
例子
In the debate, the moderator functioned as an impartial arbiter.
The lawyer acted as the arbiter in the property dispute.
02
a person or authority with ultimate power to decide matters or enforce rules at will
例子
The king was the arbiter of justice in the medieval kingdom.
In the company, the CEO acted as the final arbiter on all major decisions.
