Zi Collection, Middle Volume Radical: Mouth (kǒu) Page 255, Entry 08 The character is the same as "mào" (appearance) in the "Jiyun" (Collection of Rhymes). The "Book of Han (Qianhanshu), Treatise on Laws" records: A person's appearance is similar to Heaven and Earth. Annotation: The "Zhengzitong" (Correct Character Compendium) believes this is an ancient form of the character "mào" (appearance), which is incorrect.