third party

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.

third party

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

adjective

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

   third-party insurance

Word History and Origins

Origin of third party¹

An Americanism dating back to 1795–1805

Example Sentences

On the whole, agencies seem to be relatively unconcerned by these kinds of changes — less than a quarter of agency respondents agreed that the end of third party cookies would hurt their businesses, compared to nearly half of brand-side respondents.

From Digiday

But amid this widespread and sustained dissatisfaction, 2014 was a terrible year for third-party candidates.

From The Daily Beast

According to the company, “political advertising through third-party ad networks is blocked on Grindr.”

From The Daily Beast

The amount of money the group earns is not checked by reliable third-party entities so their real earnings are unknown.

From The Daily Beast

Are the third-party vendors mining this data for other purposes?

From The Daily Beast

When a female candidate slips up, she should respond succinctly and then introduce third-party validators, said Carpenter.

From The Daily Beast

All this, however, does not prove that the third-party people were not the real forerunners and founders of the Republican party.

From Project Gutenberg

The conference ended with an agreement to support a Third-Party movement directed by Jenkins.

From Project Gutenberg

Since the Civil War, the currency question has twice given life to third-party movements.

From Project Gutenberg

When a break comes, perhaps through third-party treachery, there may come the sense of eternal severance, but is it eternal?

From Project Gutenberg

But the one man with the political vision to see the possibilities of the third-party movement, was not a member of a labor union.

From Project Gutenberg

Related Words

• mediator