Shuowen Jiezi (Chinese: 说文解字; literally: 'Explaining Graphs and Analyzing Characters') was an early-2nd-century Chinese dictionary from the Han Dynasty. Although not the first comprehensive Chinese character dictionary (the Erya predates it), it was the first to analyze the structure of the characters and to give the rationale behind them, as well as the first to use the principle of organization by sections with shared components, called radicals (bùshǒu 部首, lit. "section headers").
说文解字
Xu Shen (许慎)
Xu Shen(许慎) wrote the Shuowen Jiezi to analyze seal script (specifically xiǎozhuàn 小篆 "small seal") characters that evolved slowly and organically throughout the mid-to-late Zhou dynasty in the state of Qin, and which were then standardized during the Qin dynasty and promulgated empire-wide. Thus, Needham et al. (1986: 217) describe the Shuowen jiezi as "a paleographic handbook as well as a dictionary".
The dictionary includes a preface and 15 chapters. The first 14 chapters are character entries; the 15th and final chapter is divided into two parts: a postface and an index of section headers. Xǔ Shèn states in his postface that the dictionary has 9,353 character entries, plus 1,163 graphic variants, with a total length of 133,441 characters. The transmitted texts vary slightly in content, owing to omissions and emendations by commentators (especially Xú Xuàn, see below), and modern editions have 9,831 characters and 1,279 variants.
子 zǐ "child"