Zi Collection, Upper Volume Radical: Big (dà) Page 150, Entry 05 The Broad Rhymes (Guangyun) and Collected Rhymes (Jiyun) state that the pronunciation of this character is tai. It sounds the same as the character for big. Guo Zhongshu's Collection of Amulets and Bone Rings (Peixi Ji) records that this is a place name in the sea.