WordNet: arbiter, arbitrator, umpire

someone chosen to judge and decide a disputed issue; "the critic was considered to be an arbiter of modern literature"; "the arbitrator's authority derived from the consent of the disputants"; "an umpire was appointed to settle the tax case"

• hypernym evaluator, judge

• hyponym third party

arbiter

• (englanti) arbitrate (derivationally related)
• (suomi) sovittelija (synonyymi)

• (suomi) välimies (synonyymi)

• (suomi) välitystuomari (synonyymi)

arbitrator

• (englanti) arbitrate (derivationally related)
• (suomi) riidanselvittäjä (synonyymi)

• (suomi) sovittelija (synonyymi)

• (suomi) sovintotuomari (synonyymi)

umpire

• (suomi) tuomari (synonyymi)

• (suomi) sovintotuomari (synonyymi)