The phrase "leaves behind" is a common expression used to refer to something that is left or abandoned. However, there are various synonyms that can be used interchangeably with this phrase, such as "abandons", "forsakes", "discards", "neglects", "forgoes", "relinquishes", "surrenders", "gives up", "quits", and "abdicates". Each of these synonyms has a slightly different connotation, but all refer to the act of leaving something behind, whether it be a physical object or an emotional connection. It is important to use synonyms in writing to avoid repetitive language and add variety to the text.