third party

Definition from Wiktionary, the free dictionary
Jump to navigation Jump to search
See also: third-party


English Wikipedia has an article on:


  • (file)
  • (file)


third party (countable and uncountable, plural third parties)

  1. Someone not directly involved in a transaction. A third entity in the Seller (first party) and Customer (second party) relationship. A Seller may employ a third party to perform specific services to augment the value of a product. For example, a manufacturer may employ a third party to pack and distribute a product. A computer manufacturer may augment their product with software from a third-party supplier.
  2. Someone only incidentally or tangentially connected to an incident or dispute; someone other than the principals; a bystander or independent witness.
  3. A political party in opposition to the main parties in a two-party system
    • 2010, Duncan Watts, Dictionary of American Government and Politics, →ISBN, page 177:
      Those who belong to the Libertarian Party serve a much larger pro-liberty community and have the specific mission of electing libertarians to public office. They traditionally billed themselves as 'America's largest third party'.

Derived terms[edit]


See also[edit]