Split apart, also known as separating, dividing, breaking, or parting ways are different synonyms that can be used as an alternative to one another. These words can be used to describe the act of physically tearing or breaking something into two or more separate pieces. Figuratively, they can be used to describe the ending of a relationship, friendship, or partnership. Dividing or parting ways can also be used to describe the process of separating two opposing groups or factions. In essence, these synonyms all convey the idea of separating or breaking apart something that was once unified or together in some way.