Sitting out is a phrase that typically refers to the act of not participating in something. It can be used in a variety of contexts, such as sports (sitting out a game), parties (sitting out a dance), or even daily activities (sitting out a meeting). Depending on the situation, there are several synonyms for the phrase that can be used interchangeably, such as abstaining, refraining, avoiding, neglecting, or bypassing. These words convey the same sense of choosing not to participate in an activity or event, but they may carry slightly different connotations depending on the context. Ultimately, the choice of synonym depends on the tone and context in which the phrase is being used.