tyranny：释义

A government in which a single ruler is vested with absolute power.

The office, authority, or jurisdiction of an absolute ruler.

Absolute power, especially when exercised unjustly or cruelly: "I have sworn . . . eternal hostility against every form of tyranny over the mind of man” ( Thomas Jefferson).

Use of absolute power.

A tyrannical act.

Extreme harshness or severity; rigor.