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autocrat

American  
[aw-tuh-krat] / ˈɔ təˌkræt /

noun

  1. an absolute ruler, especially a monarch who holds and exercises the powers of government as by inherent right, not subject to restrictions.

  2. a person invested with or claiming to exercise absolute authority.

  3. a person who behaves in an authoritarian manner; a domineering person.

autocrat British  
/ ˈɔːtəˌkræt /

noun

  1. a ruler who possesses absolute and unrestricted authority

  2. a domineering or dictatorial person

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of autocrat

First recorded in 1795–1805; from Greek autokratḗs “self-ruling, ruling alone,” from auto- auto- 1 + krát(os) “power” + -ēs, adjective suffix

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.