omerta
- n a code of silence practiced by the Mafia; a refusal to give evidence to the police about criminal activities
- For 30 years Valachi kept faith with "omerta" the underworld's blood rule of silence.
- The current wave of Mob trials has benefited as well from the number of former gangsters who have proved willing to violate the Mafia's centuries-old tradition of omerta (silence .
- Omerta is the mythical code of silence.