Definition of "autocrat"

autocrat

/ˈɔːtəkɹæt/

noun
plural autocrats
1. An absolute ruler with infinite power.
  Quotations
  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.
  1837, L[etitia] E[lizabeth] L[andon], “A Secretaryship”, in Ethel Churchill: Or, The Two Brides. […], volume III, London: Henry Colburn, […], page 131
  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.
  2022 August 2, Nancy Pelosi, “Nancy Pelosi: Why I’m leading a congressional delegation to Taiwan”, in The Washington Post‎, archived from the original on 02 August 2022, Opinion
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.