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cold case

noun

Definition of cold case

  1. :  an unsolved criminal investigation (as of a homicide or abduction) that has stopped being actively pursued because of a lack of evidence <The case is pursued diligently by various detectives, but eventually abandoned and filed away among other cold cases. — Jonathan Yardley, The Washington Post, 9 Feb. 2014>



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1973

First Known Use of cold case

1973


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