revolution
Cross references: 1. rebellion rev.o.lu.tion \.rev-*-'lu:-sh*n\ n [ME revolucioun, fr. MF revolution, fr. LL revolution-, re]volutio, fr. L revolutus, pp. of revolvere 1a1: the action by a celestial body of going round in an orbit or elliptic course; also : apparent movement of such a body round the earth 1a2: the time taken by a celestial body to make a complete round in its orb it 1a3: the rotation of a celestial body on its axis 1b: completion of a course (as of years); also : the period made by the regular succession of a measure of time or by a succession of similar events 1c1: a progressive motion of a body round a center or axis so that any line of the body remains parallel to and returns to an initial position 1c2: motion of any figure about a center or axis 1c3: ROTATION 2a: a sudden, radical, or complete change 2b: a fundamental change in political organization; esp : the overt hrow or renunciation of one government or ruler and the substitution of another by the governed
Webster's English Dictionary