Wu Collection, Middle Volume Radical: Sickness (bìng) 瘦 Kangxi Stroke Count: 15 Page 778, Entry 25 Pronounced suò. The meaning is lean or thin. Also, according to the Collected Rhymes (Jiyun), pronounced sōu. The meaning is weak or frail. According to the Model Principles (Taixuanjing) by Yangzi: The mountain terrain is steep, precipitous, and thin.