n. /euh bowt"fays', euh bowt"fays"/ ; v. /euh bowt'fays"/ , n. , v. , about-faced, about-facing .
n.
1. Mil. a turn of 180° from the position of attention.
2. a complete, sudden change in position, direction, principle, attitude, etc.: They've done an about-face in their foreign policy.
v.i.
3. to execute an about face.
4. to turn in the opposite direction.
5. to switch to an opposite opinion.
[ 1860-65, Amer. ]