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English to English noun
| 1 |
act of pivoting 180 degrees, especially in a military formation |  | source: wordnet30
| 2 |
a major change in attitude or principle or point of view | | Example: an about-face on foreign policy
source: wordnet30
verb
| 3 |
turn, usually 180 degrees | | source: wordnet30
| 4 |
change one's mind and assume the opposite viewpoint | | source: wordnet30
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