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English definition of “private detective”

private detective

noun [C] uk   (also private investigator, informal private eye) us  
a person whose job is discovering information about people. A private detective is not a government employee or a police officer: She hired a private detective to find out if her husband was having an affair.Relating to detection and solving crimes
(Definition of private detective from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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