1A sensitive issue or piece of information which is kept secret by the government: protest was silenced and pollution was as much a state secret as the ammunition stocks
More example sentences
- Provider of unauthorised access to personal data or a state secret, along with the disclosure of a user password will serve between one to three years' imprisonment.
- Its contents continue to be a heavily guarded state secret.
- Actual death penalty statistics are a closely guarded state secret.
Definition of state secret in:
- The US English dictionary