1. A major change in attitude, principle or point of view
   "an about-face on foreign policy";
   - volte-face, reversal, policy change
    
2. Act of pivoting 180 degrees, especially in a military formation
   "The soldiers performed an about-face at the command of their officer";
   - about turn [Brit]

1. Turn, usually 180 degrees
   "The soldiers about-faced at the command"
    
2. Change one's mind and assume the opposite viewpoint
   "The CEO about-faced on the company's expansion plans"

Derived forms: about-faces, about-facing, about-faced

Type of: change, rethink, reversal, reverse, reversion, turn, turnabout [N. Amer], turnaround

Encyclopedia: About-face