politburo

This term carries a heavy political connotation, specifically associated with the centralized authority of Marxist-Leninist states. It suggests a small, elite group of high-ranking officials who wield immense power behind closed doors, often implying a lack of transparency and a top-down approach to governance.

While primarily used in a historical or geopolitical context regarding the Soviet Union or China, it is occasionally used metaphorically in non-political settings to describe any small, secretive committee that makes all the important decisions for a larger organization.