autocrat

noun

1. An absolute ruler with infinite power.

   “Your salary is high; you are to have apartments in the house; and to be the autocrat of the library, where, I shrewdly suspect, your reign will be undisturbed.”

   “Indeed, we take this trip at a time when the world faces a choice between autocracy and democracy. As Russia wages its premeditated, illegal war against Ukraine, killing thousands of innocents — even children — it is essential that America and our allies make clear that we never give in to autocrats.”

   “We’ve gotten used to headlines predicting the demise of democracy. While the threats we face are real, a glance around the globe shows that it’s autocrats who are in retreat right now.”

   “Trump added that the European autocrat is “a noncontroversial figure because he said, ‘This is the way it’s going to be,’ and that’s the end of it, right? He’s the boss and … he’s a great leader, fantastic leader. In Europe and around the world, they respect him.””

   “If Trump defies the Court, there is little to restrain him from acting as an autocrat, given the supplication of Republicans in Congress.”

2. A title borne by some such monarchs, as in Byzantium and tsarist Russia.
3. Until the 20th century, a favorable description of a ruler who was connected with the concept of lack of conflicts of interest and an indication of grandeur and power.