2 : something (such as a reversal of policy) resembling a U-turn. U-turn. n. 1. a turn made by a vehicle in the shape of a U, resulting in a reversal of direction. Copyright © HarperCollins Publishers. Definition of U-turn. By extension, any sudden and drastic reversal, as of opinion, policy, intention, fortune, trend, etc. of a vehicle in a street or road figuratively, a reversal of opinion, strategy, etc. Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014. Literally, a sudden 180-degree turn made by a vehicle, such that it is quickly facing or moving in the opposite direction. Learn more.

U-turn a turn made so as to head in the opposite direction: used esp. U-turn definition: 1. a turn made by a car in order to go back in the direction from which it has come: 2. a complete…. 1 : a turn resembling the letter U especially : a 180-degree turn made by a vehicle in a road. 2. a complete change in direction of political or other policy. 2. Collins English Dictionary. noun. 1. a turn made by a vehicle in the shape of a U, resulting in a reversal of direction. Cambridge Dictionary +Plus 1. Once I realized I was going the wrong way, I had to do a U-turn at the next light. U-turn in British English. 2. a complete change in direction of political or other policy.