One-party rule refers to a political system where only one political party is legally allowed to hold power. All major decision-making processes and policies are controlled by this single party.
Related terms
Single-party state: A type of government where only one political party is legally permitted to exist.
Totalitarianism: An extreme form of authoritarianism characterized by complete control over every aspect of public and private life.
Oligarchy: A system of government in which power rests with a small group of people who often belong to the same social class or political party.