dictator

noun

1. 1

   A totalitarian leader of a country, nation, or government.

   “Dictators are always punished eventually.”

2. 2

   A magistrate without colleague in republican Ancient Rome, who held full executive authority for a term granted by the senate (legislature), typically to conduct a war.

3. 3

   A tyrannical boss or authority figure.

4. 4

   A person who dictates text (e.g. letters to a clerk).