Authoritarianism is a form of government where power is concentrated in the hands of a single leader or small group, who often use coercion to maintain control.
Dictatorship: A dictatorship is a type of government where one person holds absolute power and often uses coercion to suppress opposition and maintain control.
Police State: A police state is a government that exercises strict control over its citizens through surveillance, censorship, and coercion by law enforcement agencies.