Chou Collection, Upper Volume Radical: Mouth (kǒu) Character: Yu Kangxi Stroke Count: 12 Page 197, Entry 24 Pronounced yu. According to the Etymology of Characters (Shuowen), it describes the sound of voices. In the Collection of Rhymes (Jiyun), it is sometimes written in a variant form (yo). Also, according to the Collection of Rhymes (Jiyun), pronounced yu. Yu-yu describes the sound of a crowd. It is sometimes written in a variant form.