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about-face verb

  /əˈbaʊtˌfeɪs/
  • (intransitive) To turn 180 degrees to face the opposite direction.
faire demi-tour
  • To change opinion or attitude drastically.
faire volte-face

about-face noun

  /əˈbaʊtˌfeɪs/
  • (military) An abrupt turn to face the opposite direction.
demi-tour, revirement, volte-face
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