A complete change of direction or opinion.
The friendly welcome was a 180 from what she had been expecting
The exact opposite.
An instance of spinning 180 degrees, so that one is facing in the opposite direction.
A reversal of policy; an about-face, a backflip.
A turn in a vehicle carried out by driving in a semicircle in order to travel in the opposite direction.
To shift from one opinion or decision to its opposite.
To turn a vehicle in a semicircle so as to face the opposite direction.