The
Jiyun (
Chi-yun; ) is a
Chinese rime dictionary published in 1037 during the
Song Dynasty. The chief editor Ding Du (丁度) and others expanded and revised the
Guangyun. It is possible, according to Teng and Biggerstaff (1971:147), that
Sima Guang completed the text in 1067. The
Jiyun has 53,525 character entries (Teng & Biggerstaff, 1971: 147), approximately twice as many as the
Guangyun, and likewise has 206 rime groups.