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English definition of “smell sth/sb out”

smell sth/sb out

mainly UK (US usually sniff sth/sb out)
verb uk phrasal verb with smell   /smel/ (smelled or UK also smelt, smelled or UK smelt) us  
to discover where something or someone is by smelling: At customs, dogs are used to smell out drugs in passengers' luggage.
(Definition of smell sth/sb out from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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