Guān (ancient xuán tone cut), as noted in the "Guangyun" (Guangyun), is pronounced guī xuán tone cut in "Jiyun" (Jiyun), with the same pronunciation as "juān". "Shuowen Jiezi" (Shuowen Jiezi) explains it as wine. "Yupian" (Yupian) explains it as filtering wine through holes. Furthermore, in "Guangyun" (Guangyun), it is noted as gu ancient xiàn tone cut, and in "Jiyun" (Jiyun) as jiōng xiàn tone cut, with the same pronunciation as "juàn". The meaning is the same.