"End for end" refers to flipping or reversing something completely, so it is natural that there are various synonyms for this phrase. Some alternatives can include "flip-flop," "turnabout," "about-face," "reversal," "backflip," "180-degree turn," and "opposite direction." Each of these phrases describes the act of turning something in the opposite direction, whether it's a physical object or a course of action. Using these synonyms can enhance your communication and clarity of meaning, particularly in situations where you want to emphasize a complete reversal of what was originally intended.