u-turn

/Y UW1 T ER0 N/
noun
  1. 1

    A turn in a vehicle carried out by driving in a semicircle in order to travel in the opposite direction.

  2. 2

    A reversal of policy; a volte-face, a backflip

    โ€œThe government have done a U-turn and are now supporting greater European integration instead of opposing it.โ€

Synonyms

Source: https://en.wiktionary.org/wiki/U-turn, https://en.wiktionary.org/wiki/u-turn