turnabout

noun5

1. •
   The act of turning about so as to face in the opposite direction.

   • It is a fine dance, fast and intricate, with many turnabouts. The women's long black hair swirls as they turn; […] — 1975
2. •
   A change from one thing to its opposite, or from a situation to the reverse.
3. •
   A reversal of a decision or opinion etc; a change of mind or flip-flop.
4. •
   A three-point turn or any similar act of turning around, with the same outcome, regardless of how many repeated forward-reverse maneuvers it takes.
5. •
   A merry-go-round.