Guangyun: gu wò qiè. Jiyun, Yunhui: gū wò qiè, pronounced the same as "gù" (梏). Guangyun: refers to processing ivory. Also Guangyun, Jiyun: hú gǔ qiè, pronounced the same as "hú" (縠). Yupian: refers to the sound of teeth. Also Jiyun, Yunhui: hú wò qiè, pronounced the same as "hú" (鹄). Also Jiyun: kè jiǎo qiè, pronounced the same as "hú" (觳). Meaning is the same.