Someone chosen to judge and decide a disputed issue:
— The arbitrator's authority derived from the consent of the disputants.
synonyms: arbiter, umpire.
Roget 480:
result,
conclusion,
upshot;
deduction,
inference,
ergotism [Med.];
illation;
corollary,
porism†;
moral.
estimation,
valuation,
appreciation,
judication†;
dijudication†,
adjudication;
arbitrament,
arbitrement†,
arbitration;
assessment,
ponderation†;
valorization.
award,
estimate;
review,
criticism,
critique,
notice,
report.
decision,
determination,
judgment,
finding,
verdict,
sentence,
decree;
findings of fact;
findings of law;
res judicata [Lat.].
plebiscite,
voice,
casting vote;
vote
etc.
(choice)
609;
opinion
etc.
(belief)
484;
good judgment
etc.
(wisdom)
498.
judge,
umpire;
arbiter,
arbitrator;
asessor,
referee.
censor,
reviewer,
critic;
connoisseur;
commentator
etc.
524;
inspector,
inspecting officer.
twenty-twenty hindsight
[judgment after the fact];
armchair general,
monday morning quarterback.
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Roget 967:
judge;
justice,
justiciar†,
justiciary†;
chancellor;
justice of assize,
judge of assize;
recorder,
common sergeant;
puisne judge,
assistant judge,
county court judge;
conservator of the peace,
justice of the peace;
J. P.;
court
etc.
(tribunal)
966;
magistrate,
police magistrate,
beak [Slang];
his worship,
his honor,
his lordship.
jury,
twelve men in a box.
Lord Chancellor,
Lord Justice;
Master of the Rolls,
Vice Chancellor;
Lord Chief Justice,
Chief Baron;
Mr.
Justice,
Associate Justice,
Chief Justice;
Baron,
Baron of the Exchequer.
jurat [Lat.],
assessor;
arbiter,
arbitrator;
umpire;
referee,
referendary†;
revising barrister;
domesman†;
censor
etc.
(critic)
480;
barmaster†,
ephor†;
grand juror,
grand juryman;
juryman,
talesman.
archon,
tribune,
praetor,
syndic,
podesta†,
mollah†,
ulema,
mufti,
cadi†,
kadi†;
Rhadamanthus†.
litigant
etc.
(accusation)
938.
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Roget 758:
consignee,
trustee,
nominee,
committee.
agent,
delegate;
commissary,
commissioner;
emissary,
envoy,
commissionaire [Fr.];
messenger
etc.
534.
diplomatist,
diplomat,
diplomate,
corps diplomatique [Fr.],
embassy;
ambassador,
embassador†;
representative,
resident,
consul,
legate,
nuncio,
internuncio†,
charge d'affaires [Fr.],
attache.
vicegerent
etc.
(deputy)
759;
plenipotentiary.
functionary,
placeman†,
curator;
treasurer
etc.
801;
factor,
bailiff,
clerk,
secretary,
attorney,
advocate,
solicitor,
proctor,
broker,
underwriter,
commission agent,
auctioneer,
one's man of business;
factotum
etc.
(director)
694;
caretaker;
dalal†,
dubash†,
garnishee,
gomashta†.
negotiator,
go-between;
middleman;
under agent,
employe;
servant
etc.
746;
referee,
arbitrator
etc.
(judge)
967.
traveler,
bagman,
commis-voyageur [Fr.],
touter†,
commercial traveler,
drummer [U.S.],
traveling man.
newspaper correspondent,
own correspondent,
special correspondent.
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Roget 724:
mediation,
mediatorship†,
mediatization†;
intervention,
interposition,
interference,
intermeddling,
intercession;
arbitration;
flag of truce
etc.
723;
good offices,
peace offering;
parley,
negotiation;
diplomatics†,
diplomacy;
compromise
etc.
774.
[person who mediates]
mediator,
arbitrator,
intercessor,
peacemaker,
makepeace†,
negotiator,
go-between;
diplomatist
etc.
(consignee)
758;
moderator;
propitiator;
umpire.
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Dutch: bemiddelaar, scheidsrechter, arbiter
Polish: osądziciel