third party

noun

Definition of third party

  1. 1 :  a person other than the principals a third party to a divorce proceeding insurance against injury to third parties

  2. 2a :  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 systemb :  minor party

1641

First Known Use of third party

1641


THIRD PARTY Defined for English Language Learners

third party

noun

Definition of third party for English Language Learners

  • law : someone who is not one of the two main people involved in a legal agreement but who is still affected by it in some way


Law Dictionary

third party

  1. see party 1a, b


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