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

This growth is attributed to an increase in third-party publisher revenue, particularly from Walmart (WMT+0.24%), Dollar General (DG-1.71%), and Family Dollar (DLTR-0.81%). —Quartz Bot, Quartz, 14 Nov. 2024

The system is now under the control of an interim third-party manager. —Bracey Harris, NBC News, 14 Nov. 2024

Noun

Eligible users must not have already been reimbursed by Block Inc., Cash App Investing or a third party, according to the mobile payment service company. —Raphael Romero Ruiz, The Arizona Republic, 18 Nov. 2024

Others said some information could be shared with third parties for marketing and sales. —Corey G. Johnson, ProPublica, 15 Nov. 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