Qieyun (ancient Chinese rhyme dictionary)
Refers to a specific historical Chinese dictionary compiled in 601 CE, organized by tone and rhyme, using fanqie to indicate pronunciation. Used in discussions of historical Chinese phonology and East Asian linguistics.
The Qieyun is a rhyme dictionary compiled during the Sui dynasty.
In Chinese historical phonology, the fanqie of the Qieyun serve as important sources.
From Chinese 切韻 (Qièyùn), literally 'cutting rhymes' or 'segmenting rhymes', referring to the dictionary's method of organizing characters by tone and rhyme.