Simple Definition of third party
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
Full Definition of third party
1 : a person other than the principals <a third party to a divorce proceeding> <insurance against injury to third parties>
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
First Known Use of third party
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