Final answer:
A dictatorship is a form of government where political power is held by a single ruler.
Step-by-step explanation:
In social studies, the form of government in which political power is held by a single ruler is called a dictatorship. In a dictatorship, all power is concentrated in the hands of one individual or a small group of individuals, who rule with absolute authority and often without the consent of the people. Examples of dictatorships include Adolf Hitler's regime in Nazi Germany and Kim Jong-un's rule in North Korea.
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