Zi Collection, Upper Volume, Page 16, Entry 01 Pronounced gu (third tone) according to Guangyun (Guangyun) and qià (third tone) according to Jiyun (Jiyun). The pronunciation is the same as "jiā". It means subtle and dim. It also has the meaning of minute. Another explanation refers to the twitching of an eyelid. Sometimes also written as "䀹". Zi Collection, Upper Volume, Page 16, Entry 02 According to Zihui (Zihui), the pronunciation is dīng (third tone) and běn (third tone). It is read as "dūn" with the rising tone. It describes a hazy state of wanting to sleep.