reviravolta
re.vi.ra.vol.ta

sf
1 complete reversal of position: houve uma reviravolta completa da opinião pública / there was a complete veering round of public opinion.
2 turn, overturn, reverse.
3 about-face.
4 ebb.
5 pirouette.
6 rotation, spin.
7 bras, pop return: a coming or going back.