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

Earlier this week, Two Harbors said a CrossCountry bid worth $10.70 a share was superior to its deal with UWM and said it had also received a bid from an additional third party.

From The Wall Street Journal

The commission has been piloting an age-verification app that is currently being tested with member states, online platforms and other third parties.

From The Wall Street Journal

All of its software is open-source, which means third parties can inspect the code and verify that it performs as advertised.

From Salon

But some companies now offer the ability to pay for purchases without your phone, by providing your biometrics, which are stored by the company or a third party.

From The Wall Street Journal

Lawyers already are barred under the State Bar’s rules from allowing a third party to dictate case strategy and are barred in many cases from sharing legal fees with a nonlawyer.

From Los Angeles Times

Related Words

• mediator