Definition of sleuth noun from the Oxford Advanced Learner's Dictionary



BrE BrE//sluːθ//
; NAmE NAmE//sluːθ//
(old-fashioned or humorous)
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a person who investigates crimes synonym detective an amateur sleuth Agatha Christie’s super sleuth, Hercule Poirot Word OriginMiddle English (originally in the sense ‘track’, in sleuth-hound): from Old Norse slóth. Current senses date from the late 19th cent.
See the Oxford Advanced American Dictionary entry: sleuth