Si Collection, Upper Volume Radical: Water (shuǐ) Gan; Kangxi strokes: 28; Page 664, Entry 28 Broad Rhymes (Guangyun), Collection Rhymes (Jiyun), Rhyme Meetings (Yunhui), and Orthodox Rhymes (Zhengyun) state it is pronounced gan (rising tone). It is the name of a river. In the History of the Former Han Dynasty (Qian Hanshu) Geography Treatise, it states that in Yuzhang, Gan County, water emerges from the southwest and flows north into the great river. Also, Broad Rhymes (Guangyun), Collection Rhymes (Jiyun), and Rhyme Meetings (Yunhui) state it is pronounced gan (falling tone). It is interchangeably used with the variant form gan (falling tone). Also, Collection Rhymes (Jiyun), Rhyme Meetings (Yunhui), and Orthodox Rhymes (Zhengyun) state it is pronounced gong (falling tone). It is interchangeably used with the variant form gan (falling tone). It is simplified as a variant form. The meaning is the same.