Leave out is a phrasal verb that means to exclude or omit something or someone. There are several synonyms that can be used interchangeably with this phrase. For example, ignore, neglect, pass over, skip, overlook, and reject all carry the same general meaning of leaving something out. Other alternatives include edge out, eliminate, or exclude. It's important to note that while these synonyms share a similar definition, they may not always be appropriate in every context or situation. It's useful to consider the context in which you are using these words before deciding which synonym might be the best fit.