ar·bi·tra·tor | \ˈär-bə-ˌtrā-tər \

Definition of arbitrator 

: one that arbitrates a dispute : arbiter an impartial arbitrator

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Synonyms for arbitrator


adjudicator, arbiter, judge, referee, umpire

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Examples of arbitrator in a Sentence

Both sides agreed to accept a decision by an impartial arbitrator. the couple finally agreed to let the salesclerk be the final arbitrator and tell them which shirt looked best

Recent Examples on the Web

The union signed the agreement with the city after a panel of arbitrators awarded the contract. Laura Mccrystal,, "Philly signs 3-year contract with firefighters," 17 May 2018 Then again, at least one arbitrator has already been convinced by the Cohen/Trump team to hear this case, at least long enough to issue a restraining order against Daniels. NBC News, "Last place Trump lawyer Michael Cohen wants to be is a courtroom," 28 Mar. 2018 Both parties can still come to a settlement agreement at any time before the hearing, in which each side will argue in front of a third-party arbitrator. Rustin Dodd, kansascity, "KC Royals avoid arbitration with Kelvin Herrera, Nathan Karns | The Kansas City Star," 12 Jan. 2018 Barclay has said that Malloy’s son, upon his mother’s admission, had signed the home’s standard form agreeing that future disputes would be solved by arbitrators. Craig R. Mccoy,, "Lawsuit alleges 'agonizing and lonely deaths' in Barclay Friends fire," 15 June 2018 In 2015, an arbitrator ruled that Flexjet had illegally fired three pilots, at least in part because of their support for the Teamsters. Josh Eidelson,, "Airline pilots may be next in the U.S. corporate war on unions," 1 May 2018 An arbitrator ruled in Delcol's favor and he again was rehired, the Dispatch reports. Cliff Pinckard,, "State Highway Patrol fires trooper after arrest in drug sting," 28 Feb. 2018 But arbitrator Jonathan Marks ruled in the NFL's favor in 2016, affirming the league's right to use the list. Mark Maske,, "LeSean McCoy investigation could leave NFL with tough disciplinary decision," 12 July 2018 Unable to reach a compromise on contract language in the years since, the parties have relied on an arbitrator to adjudicate their labor disputes. Zak Koeske, Daily Southtown, "In first public address, new Oak Lawn fire chief addresses labor strife, says departmental change must happen," 6 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'arbitrator.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of arbitrator

15th century, in the meaning defined above

History and Etymology for arbitrator

Middle English, borrowed from Medieval Latin arbitrātor "umpire," from Latin arbitrārī "to consider, judge, arbitrate" + -tor, agent suffix

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Last Updated

6 Oct 2018

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Time Traveler for arbitrator

The first known use of arbitrator was in the 15th century

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English Language Learners Definition of arbitrator

: a person who is chosen to settle a disagreement between people or groups


ar·bi·tra·tor | \ˈär-bə-ˌtrā-tər \

Kids Definition of arbitrator

: a person chosen to settle differences in a disagreement


ar·bi·tra·tor | \ˈär-bə-ˌtrā-tər \

Legal Definition of arbitrator 

: an impartial person or group that is given the power by disputing parties to resolve their dispute — compare mediator

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