疏散
shū sàn · HSK 7
to evacuate
🏃 疏 sparse/thin-out + 散 scatter = thin a crowd out by scattering it = evacuate
疏 means sparse or to thin out, and 散 means to scatter or break apart. Together they describe thinning a dense crowd by spreading it out — disperse a gathering, or evacuate a building.
散 — 月 (meat) + 攵 (action) + 卄 (hemp fibers)
Originally depicted beating hemp fibers apart with a stick, with 月 (meat/flesh) added later. The core image of separating or scattering things gave rise to meanings like 'scatter,' 'disperse,' and 'loose/leisurely.' The 攵 component signals an action done by hand.