about–face

1 ENTRIES FOUND:
about–face /əˈbaʊtˈfeɪs/ noun
plural about–faces
about–face
/əˈbaʊtˈfeɪs/
noun
plural about–faces
Britannica Dictionary definition of ABOUT–FACE
[count]
1 
: the act of turning to face in the opposite direction
2 
: a complete change of attitude or opinion — usually singular