Chou Collection, Upper Volume Radical: Mouth (kǒu) Character: Yu Kangxi stroke count: 11 Page 194, Entry 03 Broad Rimes (Guangyun): Pronounced yu. Collected Rimes (Jiyun): Pronounced yu. Comprehensive Collection of Characters (Yupian): The appearance of smiling. Collected Rimes (Jiyun): Cited in the Erudite Refinements (Boya) as meaning to smile. Also, according to Collected Rimes (Jiyun): Pronounced ou. The meaning is the same.