What is another word for private eye?
Pronunciation: [pɹˈa͡ɪvət ˈa͡ɪ] (IPA) 
Private eye is a slang term for a private investigator or detective. There are many synonyms for this term, each with its own connotations. Some of the most common synonyms include sleuth, gumshoe, PI, detective, investigator, and spy. Sleuth and gumshoe both evoke a sense of old-school detective work, with the image of a trench-coated detective walking the mean streets of a city. PI and detective are more formal terms that are often used in legal and investigative circles. Investigator is a more general term that can be used to describe a wide range of professionals. Spy can be used to describe someone who is gathering intelligence or information on behalf of a government or organization.
