散 (sǎn) means 'to come loose, fall apart, or become undone' — it describes something that was held together but is now separating, like hair, a bag, or furniture. This is different from 崩溃 (bēng kuì 'to collapse'), which is more dramatic and often used for systems, economies, or mental states, and from 破裂 (pò liè 'to burst/rupture'), which implies a clean break in objects or relationships. 散 focuses on gradual loosening or disassembly.