There are several synonyms for the phrase "settle a score," which means to take revenge or get even with someone for a past hurt or offense. Some alternatives to this phrase include "get even," "exact revenge," "pay back," "retaliate," "even the score," and "avenge." These expressions all suggest a desire for justice or satisfaction, usually in response to a perceived injustice or wrongdoing. Whether it is an argument between friends, a betrayal in a relationship, or a dispute in the workplace, settling a score is a common human impulse that can have both positive and negative consequences.