Tyranny (noun)

1. Cruel and oppressive government or rule.
2. A form of government in which a single ruler has absolute power.

Origin:

Late middle english: via french from latin tyrannus, from greek turannos "absolute ruler", from turannos "lord, master".

Examples:

1. The people rose up against the tyranny of the dictator.
2. The tyranny of the government led to widespread poverty and suffering.
3. He spoke out against the tyranny of the ruling party.
4. The people were tired of living under the tyranny of the king.
5. The nation was in need of deliverance from the tyranny of the government.