There are several synonyms that can be used for the phrase "hangs together". Some of these include "coheres", "fits together", "holds up", "makes sense", "sticks", "works". All of these synonyms refer to the idea that something is cohesive and logical, or that individual components are integrated in a way that creates a unified whole. When something "hangs together", it is typically stable and functional. This term is commonly used in reference to arguments, stories, or other narratives that require a degree of internal consistency and coherence to be effective. By using synonyms such as these, writers can add variety and depth to their language, while conveying the same essential meaning.