supersleuth

noun
su·​per·​sleuth | \ ˌsü-pər-ˈslüth How to pronounce supersleuth (audio) \
plural supersleuths

Definition of supersleuth

: a very successful sleuth or detective a TV supersleuth The supersleuth … has investigated a murder dating back 30 years for a slick new documentary drama.— Mark Jefferies and Nicola Methven

First Known Use of supersleuth

1917, in the meaning defined above

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The first known use of supersleuth was in 1917

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