revolution
/ˌrɛvəˈluːʃən/
noun
plural -tions
the usually violent attempt by many people to end the rule of one government and start a new one [count]
[count] :a sudden, extreme, or complete change in the way people live, work, etc.
technical
the action of moving around something in a path that is similar to a circle :rotation [count]
[count] :a complete turn that is made by something around its center point or line