autocrat Meaning, Definition & Usage

  1. noun a cruel and oppressive dictator
    tyrant; despot.

WordNet

Au"to*crat noun
Etymology
Gr. self + strength, strong: cf. F. autocrate. See Hard, a.
Definitions
  1. An absolute sovereign; a monarch who holds and exercises the powers of government by claim of absolute right, not subject to restriction; as, Autocrat of all the Russias (a title of the Czar).
  2. One who rules with undisputed sway in any company or relation; a despot.
    The autocrat of the breakfast table. Holmes.

Webster 1913