Anarchist (noun)

1. A person who advocates for the abolition of governments and systems of hierarchy, often advocating for self-governance and autonomy.
2. A person who actively resists or rebels against such systems.

Origin:

From french anarchiste, from greek anarchos "without ruler", from an- "without" + arkhos "ruler".

Examples:

1. The anarchist threw a brick through the window of the government building.
2. The group of anarchists were protesting against the government's policies.
3. The country was in a state of anarchy as different factions struggled for power.
4. The professor's theories on anarchism influenced a generation of activists.
5. The anarchist"s beliefs about the state"s role in society were controversial.