1. 1. The act or an instance of reversing.
   2. The state of being reversed.
2. A usually adverse change in fortune: financial reversals.
3. Law. The act or an instance of changing or setting aside a lower court's decision by a higher court.
4. Sports. A maneuver in wrestling in which a competitor being controlled by the opponent suddenly reverses the situation and gains control.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.