third party

American  

noun

1. any party to an incident, case, quarrel, etc., who is incidentally involved.

2. (in a two-party system) a political party formed as a dissenting or independent group from members of one or both of the two prevailing major parties.

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third party British  

noun

1. a person who is involved by chance or only incidentally in a legal proceeding, agreement, or other transaction, esp one against whom a defendant claims indemnity

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adjective

1. insurance providing protection against liability caused by accidental injury or death of other persons or damage to their property

   third-party insurance

Etymology

Origin of third party

An Americanism dating back to 1795–1805

Example Sentences

As OpenAI matures, she anticipates it will inevitably build an in-house advertising software platform to capture the spending that currently goes to third parties, Trade Desk included.

From Barron's

As OpenAI matures, anticipate it will inevitably build an in-house advertising software platform to capture the spend it currently cedes to third parties.

From Barron's

Ideally, choose an independent third party as trustee.

From MarketWatch

She told the inquest it was impossible to establish the exact sequence of events, but ruled out any suspicious circumstances or the involvement of a third party.

From BBC

He will lead Norwood’s expansion, develop new AI characters and oversee the creation of AI talent commissioned by third parties.

From Los Angeles Times

Related Words

• mediator