Common words:
* Monarchy: Rule by one person, typically a king or queen.
* Oligarchy: Rule by a small group of people.
* Democracy: Rule by the people.
* Anarchy: Absence of government or rule.
Less common words:
* Matriarchy: Rule by women.
* Patriarchy: Rule by men.
* Technocracy: Rule by technical experts.
* Theocracy: Rule by religious leaders.
* Gerontocracy: Rule by elders.
* Plutocracy: Rule by the wealthy.
* Meritocracy: Rule by those with merit or ability.
* Bureaucracy: Rule by officials and administrators.
Other related words:
* Hierarchy: A system of ranking or organization.
* Archangel: A high-ranking angel.
* Patriarch: The male head of a family or tribe.
* Matriarch: The female head of a family or tribe.
The suffix "-archy" generally signifies a form of government or rule, often with a specific characteristic or group in power.