Rebellion (noun)

1. An act of violent or open resistance to an established government or ruler.
2. A refusal to accept or comply with an authority or established convention.

Origin:

Late middle english: from old french rebellion, from latin rebellio(n-), from rebellare "rise in opposition," from re- "again" + bellare "to wage war.".

Examples:

1. The country experienced a rebellion against the dictator's rule.
2. The rebels organized a rebellion to overthrow the government.
3. The history of the country was marked by numerous rebellions.
4. The youth's rebellion against their parents was a cry for independence.
5. The artist's work was a rebellion against the conventional style of the time.