I. The sway of a tyrant, arbitrary or despotic rule, tyranny: “o di boni! vivit tyrannis, tyrannus occidit,” Cic. Att. 14, 9, 2; cf.: “sublato tyranno tyrannida manere video,” id. ib. 14, 14, 2: “tyrannidem occupare,” id. Off. 2, 23, 90; so Quint. 5, 11, 8: “affectare,” id. 7, 2, 54; 9, 2, 81: “delere,” Cic. Tusc. 2, 22, 52: “destruere,” Quint. 1, 10, 48; Just. 16, 4, 6; 21, 5, 11; Val. Max. 2, 10, ext. 1; “8, 9, ext. 2: (Pythagoras) odio tyrannidis exsul Sponte erat,” Ov. M. 15, 61: “tyrannis saeva crudaque Neronis,” Juv. 8, 223.—
B. Transf., the region ruled by a tyrant: “quinque et viginti talenta tyrannidem tuam exhaurirent?” Liv. 28, 14.—
II. A female tyrant, Treb. XXX. Tyr. 31 fin.; cf. tyranna.