Senses
机密/ 機密 secret
secret; confidential; classified; an important secret; confidential matters; classified information
机密/ 機密 careful
(literary) careful; discreet; cautious
机密/ 機密 confidential post
(literary) an important, confidential government post or the department managing such affairs
机密/ 機密 confidential clerk
(archaic) a person in a county yamen in charge of confidential files