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English definition of “trade secret”

trade secret

noun [C]    
a piece of information about a product that is known only to the particular company that makes it: The exact ingredients of Coca-Cola are a trade secret.Secrecy and privacyBusiness and commerce - general words informal a piece of information that you are not willing to tell anyone: My aunt won't tell anyone her age - she says that it's a trade secret.Secrecy and privacy
(Definition of trade secret noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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