third-party

1 of 2

adjective

third-par·​ty ˈthərd-ˈpär-tē How to pronounce third-party (audio)
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

Examples of third-party in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
Now add in the lack of Google Play services, and the third-party app ecosystem for the Murena tablet is limited. Ewan Spence, Forbes, 23 Mar. 2025 It was operated by a third-party contractor for all 20 years. Eleanor Nash, Kansas City Star, 23 Mar. 2025
Noun
View Comments Thales added in a separate statement that the map had been provided by a third party. Julia Buckley, CNN, 14 Mar. 2025 The third party delivery company called to arrange a suitable date and to confirm if a certificate of insurance was needed. Nashia Baker, Architectural Digest, 13 Mar. 2025 See All Example Sentences for third-party

Word History

First Known Use

Adjective

1901, in the meaning defined at sense 1

Noun

1641, in the meaning defined at sense 1

Time Traveler
The first known use of third-party was in 1641

Browse Nearby Words

See all Nearby Words

Cite this Entry

“Third-party.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/third-party. Accessed 29 Mar. 2025.

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

Legal Definition

third party

see party sense 1a, b

Last Updated: - Updated example sentences
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