In "Shuowen Jiezi" (Shuowen Jiezi), the pronunciation is noted as "zun zhu qie" (rising tone), the same as "zhu". The meaning is to identify. Another interpretation is to hide. In "Yupian" (Yupian), it is explained as mouth. It also refers to a bird's beak. Also, in "Guangyun" (Guangyun) and "Yunhui" (Yunhui), the pronunciation is noted as "ji wei qie", in "Jiyun" (Jiyun) as "zuo wei qie", the same as "zui". The meaning is the same. Also, in "Jiyun" (Jiyun), the pronunciation is noted as "zun wei qie", the same as "ji". In "Boyao" (Boyao), it is explained as a stone needle called 㭰. Also, the pronunciation is noted as "jin chui qie". The meaning is the same. ○ Note: "Shuowen Jiezi" considers it to be from this character with the sound of "shu". This is an incorrect classification.