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English definition of “know your stuff”

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know your stuff

informal
to know a lot about a subject, or to be very good at doing something: She's an excellent teacher - she really knows her stuff.Knowledge and awareness
Translations of “know your stuff”
in Chinese (Traditional) 精通業務,在行…
in Russian знать свое дело…
in Turkish işini iyi bilmek, konusuna hâkim olmak…
in Chinese (Simplified) 精通业务,懂行…
in Polish znać się na rzeczy…
(Definition of know your stuff from the Cambridge Learners Dictionary © Cambridge University Press)
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