The phrase "doth a U-turn" is commonly used to describe the act of turning around one's vehicle to go in the opposite direction. However, there are various synonyms that could be used to describe this action. Some of these synonyms include "turns 180 degrees," "makes a complete reversal," "flips around," "changes course," "reverses direction," and "does a about-face." Each of these phrases conveys the same meaning as "doth a U-turn" but with a different choice of words. Using synonyms helps to improve vocabulary and keep writing interesting by avoiding repetition of the same phrase or word over and over again.