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English definition of “secret”

secret

noun [C]    /ˈsi·krɪt/
a piece of information that is not generally known or is not known by someone else and should not be told to others: We don’t keep secrets from each other. Don’t tell anyone – it’s a secret. What’s the secret of your success (= How was it achieved)?
(Definition of secret noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
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