"Turned on dime" is a phrase that refers to a quick and sudden change in direction. Synonyms for this phrase include "changed course abruptly," "made a swift turn," "pivoted," "switched gears," and "whipped around." These words describe a rapid shift in movement, often with little to no warning. Other possible synonyms include "suddenly altered direction," "veered sharply," "made an abrupt shift," and "quickly changed tack." Each of these phrases conveys a sense of urgency and sudden change, emphasizing the speed and unpredictability of the movement. Whether used to describe a physical turn or a metaphorical change in direction, these synonyms add color and impact to any description.