(1):
(n.) Cruel government or discipline; as, the tyranny of a schoolmaster.
(2):
(n.) Severity; rigor; inclemency.
(3):
(n.) The government or authority of a tyrant; a country governed by an absolute ruler; hence, arbitrary or despotic exercise of power; exercise of power over subjects and others with a rigor not authorized by law or justice, or not requisite for the purposes of government.