The phrase "does an about-face" refers to a sudden change in direction, position, or attitude. There are several synonyms for this phrase, including "makes a U-turn," "reverses course," "turns around," "changes direction," "flips," "makes a 180-degree turn," and "does a volte-face." Each of these phrases implies a significant shift in perspective or behavior and can be used in various contexts, ranging from personal relationships to politics and business. Regardless of the situation, using these synonyms can help to add variety and depth to one's language and communication.