| middle man(business, person, agent, representative) | |
| third party(noun, expression, idiom) | |
| ump(noun, sport, judge, decide, referee) | |
| critic(noun, judge) | |
| diplomat(noun, representative, delegate, mediator, speaker) | |
| intermediate | |
| intermediator | |
| pacifier(noun, mediator, intermediary, negotiator, go-between) | |
| reconciler(noun, judge) | |
| administrator(noun, judge, mediator, magistrate, go-between) | |
| agent | |
| appeaser(noun, mediator, intermediary, negotiator, diplomat) | |
| authority(noun, judge) | |
| connection | |
| decider | |
| expert(noun, judge) | |
| his honor | |
| holdout(noun, settler) | |
| interagent | |
| intermedium |
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| APA | Smart Define. (2015). arbitrator thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/arbitrator/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "arbitrator thesaurus" https://smartdefine.org/arbitrator/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, arbitrator thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/arbitrator/thesaurus/synonyms>. |
| MLA | Smart Define. "arbitrator thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/arbitrator/thesaurus/synonyms> |