arbiter

1 ENTRIES FOUND:
arbiter /ˈɑɚbətɚ/ noun
plural arbiters
arbiter
/ˈɑɚbətɚ/
noun
plural arbiters
Britannica Dictionary definition of ARBITER
[count]
1 
: a person who is considered to be an authority on what is right, good, or proper — often + of
2 
: a person who has the power to settle an argument between people