Definition

Noun: A strict code of silence and secrecy, especially one that forbids giving information to authorities about criminal activities. It is strongly associated with organized crime groups like the Mafia or Cosa Nostra.

Usage

The word is used as an uncountable noun to describe the rule or practice itself. It refers to the collective, enforced silence of a group.

Examples

• The witness broke the omerta and testified against the crime family, fearing for his life.
• For decades, the omerta within the organization made it nearly impossible for police to gather evidence.
• The prosecutor argued that the culture of omerta was the biggest obstacle to the investigation.

Advanced Usage

• The concept can be extended metaphorically to describe a similar enforced silence in any closed, secretive group (e.g., within a corrupt corporation or institution), though its primary and most powerful association remains with organized crime.
  • Example: A culture of omerta prevented employees from reporting the safety violations.

Variants and Related Words

• Code of silence: A more general term for any rule prohibiting members of a group from revealing information to outsiders or authorities.

Synonyms

• Code of silence
• Vow of silence
• Conspiracy of silence

Related Idioms

• To take the Fifth: (U.S. idiom) To refuse to testify on the grounds that one's testimony may be self-incriminating. While not the same as , it is a legal strategy that results in similar silence.
• To clam up: (Informal idiom) To suddenly become silent and refuse to talk. This describes the action of an individual, whereas is the governing rule of the group.

Noun

1. a code of silence practiced by the Mafia; a refusal to give evidence to the police about criminal activities