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

As the Switch 2 is the first of the next wave of consoles, Nintendo has been tasked with starting the price increase according to what their third-party partners likely want. —Ollie Barder, Forbes.com, 5 Apr. 2025

The agency is expected to partner with a third-party vendor to manage certain aspects of the data project. —Makena Kelly, Wired News, 5 Apr. 2025

Noun

The new governing body will be responsible for overseeing NIL deals between athletes and third parties that don’t fall under the revenue-sharing agreements between schools and athletes. —The Athletic College Football Staff, New York Times, 7 Apr. 2025

Keep in mind those direct payments are in addition to both athletic scholarships, which cover tuition, housing, health resources and other benefits, and NIL deals athletes sign with third parties. —Michael McCann, Sportico.com, 7 Apr. 2025

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