Zi Collection, Page Position: Upper Radical: Mouth (kǒu) Page 89, Entry 14 According to the Extensive Dictionary of Sounds and Meanings (Guangyun) and the Collected Dictionary of Sounds (Jiyun), the pronunciation is xie (rising tone), used in the level tone. It describes the appearance of a mouth opened very wide. Also pronounced xie (level tone). The reduplicated form, xie xie, describes an appearance of great size.