n. 25B6; noun (informal) (PRIVATE) DETECTIVE, (private) investigator; informal private eye, snoop, sleuth-hound; N. Amer. informal shamus, gumshoe.
SLEUTH
Meaning of SLEUTH in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012