about-turn
noun /əˌbaʊt ˈtɜːn/
/əˌbaʊt ˈtɜːrn/
(British English) (also about-face North American English, British English)
[singular]- a complete change of opinion, plan or behaviour
- The government did an about-turn over nuclear energy.
Word Originlate 19th cent. (originally as a military command): shortening of right about turn.