u-turn

US /ˈjuː.tɜːrn/
UK /ˈjuː.tɜːrn/
"u-turn" picture
1.

a U-shaped turn made by a vehicle, typically in a road, so as to face in the opposite direction

:
The driver made a quick U-turn to go back the way he came.
Making a U-turn is prohibited on this street.
2.

a complete change of policy or opinion

:
The government made a sudden U-turn on its economic policy.
His decision was a complete U-turn from what he said last week.
1.

to make a U-turn with a vehicle

:
You can't U-turn here, it's a one-way street.
He had to U-turn when he realized he missed his exit.