Xu Collection, Upper Volume Radical: Metal (jīn) Lock Kangxi strokes: 18 Page 1317, Entry 05 Pronounced suǒ. Shuowen Jiezi (Explaining Simple and Analyzing Compound Characters): An iron lock, a door latch. Jiyun (Collection of Rhymes): A shackle or chain. History of the Former Han (Qianhan Shu), Biography of Wang Mang: To shackle his neck with iron locks. Note: The term langdang refers to a long lock. Ban Gu, Biographies and Prefaces (Xu Zhuan): Binding the reins and locks of fame and reputation. Baopuzi (Master Who Embraces Simplicity), Volume on Reclusive Scholars: Bending the sword Longyuan to be used as a chisel or lock. Zhengzitong (Correction of Characters): A suit of chain mail is made of five rings interlocking; one ring receives the arrow point, while the others support and protect it, thus the arrow cannot penetrate. Du Fu, Poetry: Rain scatters upon the golden chain mail armor. Jiyun (Collection of Rhymes): Sometimes also written in a variant form (suǒ).