about-face

nouns

act of pivoting 180 degrees, especially in a military formation
about turn, about-face
a major change in attitude or principle or point of view
"an about-face on foreign policy"
about-face, policy change, reversal, volte-face

verbs

turn, usually 180 degrees
about-face
is a type of (narrower)
change orientation or direction, also in the abstract sense
"Turn towards me"; "The mugger turned and fled before I could see his face"; "She turned from herself and learned to listen to others' needs"
turn
change one's mind and assume the opposite viewpoint
about-face
is a type of (narrower)
change one's mind
"He rethought his decision to take a vacation"
rethink