Definitions for u-turnˈyuˌtɜrn
Random House Webster's College Dictionary
aU-shaped turn made by a vehicle so as to head in the opposite direction.
a reversal of policy, tactics, etc.
Category: Common Vocabulary
Origin of U-turn:
complete reversal of direction of travel
Kernerman English Learner's Dictionary
a turn when you are driving that takes you in the opposite direction
He made a U-turn at the light.
A turn in a vehicle carried out by driving in a semicircle in order to travel in the opposite direction.
A reversal of policy; a volte-face, a backflip
Origin: :U + turn, from the similarity to the shape of the letter U.