Hai Collection, Middle Volume Radical: Fish (yú) Character: Wu Kangxi stroke count: 21 Page 1475, Entry 22 Broad Rhymes (Guangyun): Pronounced wu. Collected Rhymes (Jiyun): Pronounced wu. Sound is wu. Wuwu is the name of a fish. In the ninth month, when the cold crows enter the water, they transform into this. Jade Chapters (Yupian): Originally written as wu. See the notes for the characters zei and ze for further details.