arbiter vs. arbitrator
[ahr-bi-ter]
/ ˈɑr bɪ tər /
noun
-
a person empowered to decide matters at issue; judge; umpire.
-
a person who has the sole or absolute power of judging or determining.
[ahr-bi-trey-ter]
/ ˈɑr bɪˌtreɪ tər /
