Chen Collection, Upper Volume Radical: Sun (rì) Zhuo Kangxi stroke count: 12 Page 496, Entry 23 Guangyun (Expanded Rhymes) and Jiyun (Combined Rhymes) state it is pronounced zhuo. Guangya (Broad Refinements): Bright. Yupian (Jade Chapters): Appearance of bright flourishing. Also, Jiyun (Combined Rhymes) states it is pronounced chuo. The meaning is the same.