Definitions
1.nounA political upheaval in a government or nation state characterized by great change.
2.nounThe removal and replacement of a government, especially by sudden violent action.
3.nounRotation: the turning of an object around an axis.
4.nounA rotation: one complete turn of an object during rotation.
5.nounIn the case of celestial bodies - the traversal of one body through an orbit around another body.
6.nounA sudden, vast change in a situation, a discipline, or the way of thinking and behaving.
7.nounA round of periodic changes, such as between the seasons of the year.
8.nounConsideration of an idea; the act of revolving something in the mind.