A tyrannical boss or authority figure.
A person who dictates text (e.g. letters to a clerk).
A totalitarian leader of a country, nation, or government.
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.
An overseer of slaves at work; a person who puts slaves to work.
An employer who demands excessive amounts of work from employees.