third-party

1 of 2

adjective

third-par·​ty ˈthərd-ˈpär-tē 

1

: of, relating to, or involving a third party

third-party insurance

2

: of, relating to, or being software that is created by a vendor to be compatible with the products of another vendor

third party

2 of 2

noun

1

: a person other than the principals

a third party to a divorce proceeding

insurance against injury to third parties

2

a

: a major political party operating over a limited period of time in addition to two other major parties in a nation or state normally characterized by a two-party system

b

: minor party

Examples of third-party in a Sentence

Recent Examples on the Web

Adjective

Federal guidance restricting hospital websites’ use of third-party trackers along with the proliferation of direct-to-consumer health services is spawning a new crop of health tech startups promising to help beleaguered providers stay on the right side of the law. —Mohana Ravindranath, STAT, 17 July 2024

However, finding an agave inulin supplement that’s third-party tested is difficult. —Isabel Vasquez Rd Ldn, Health, 17 July 2024

Noun

Bundling has gained pace across the streaming landscape, with third parties like Verizon continuing to build packages as well as streaming operators themselves starting to form partnerships. —Dade Hayes, Deadline, 18 July 2024

My kitchen has more diversity, and 100% of our food waste is donated to different third parties that use it to do great things for the planet and, therefore, avoid ending up in landfills. —Dominique Fluker, Essence, 11 July 2024

Word History

First Known Use

Adjective

1901, in the meaning defined at sense 1

Noun

1641, in the meaning defined at sense 1

Kids Definition

third party

noun

1

: a person other than the main participants

a third party to the legal proceedings

2

a

: a political party operating usually for a limited time in addition to the two major parties in a 2-party system

b

: minor party

Legal Definition

third party

see party sense 1a, b