Definitions:

1. A regulation or directive that prohibits individuals, members of a legislative body, or certain organizations from discussing, debating, or disclosing certain topics or information. NOUN
   • The board of directors implemented a gag rule to prevent further discussion on the controvertial merger.
2. A rule or policy that resticts members of a legislative body from discussing or debating a particular issue. NOUN
   • Critis argue that gag rules undermine democratic principles by preventing open debate and discussions.
3. A rule that limits or forbits the raising, consideration or discussion of a particular topic by members of a legislative or decision-making body. NOUN
   • The gag rule in the legislative assembly was met with stron opposition from members who believed it infringed on their right to free speech.

Synonyms:

• Censorship policy
• silence rule
• speech suppression rule