"Doth about face" is an archaic phrase that means to turn around abruptly or to reverse one's course. In modern day language, there are several synonyms that can be used in place of this phrase. These synonyms include "turn around," "reverse," "make a U-turn," "switch direction," and "go back the way you came." Each of these phrases communicates the same concept as "doth about face" but in contemporary language. It is essential to use language that is relevant and understandable to the audience when communicating, and using synonyms that are commonly used today can help achieve that goal.