Definition of vouch in

: to call into court to defend a lawsuit against another and to be made liable to pay in whole or in part any judgment secured for the plaintiff a defendant vouches in his own liability insurance company to defend a negligence case against him

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“Vouch in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vouch%20in. Accessed 7 Aug. 2020.

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