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English definition of “secret”

secret

noun [C]  /ˈsi·krɪt/ us  
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)?

secret

adjective  /ˈsi·krət/ us  
known, done, or kept without others knowing: secret information The peace process began with secret talks in Norway.
secrecy
noun [U]  /ˈsi·krə·si/ us  
What’s the reason for all this secrecy?
secretly
adverb  /ˈsi·krɪt·li/ us  
They secretly took photographs of Jack.
(Definition of secret from the Cambridge Academic Content Dictionary © Cambridge University Press)
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