Pronounced bō (entering tone), same as "bō" — "Guangyun" and "Jiyun". Explained as running swiftly — "Yupian". Explained as falling forward — "Jiyun". Also pronounced pū (entering tone), same as "bō" — "Jiyun". Explained as suddenly — "Guangya". Also pronounced pú (entering tone), same as "bá", with the same meaning. Also explained as the manner of walking — "Shuowen Jiezi". Also written as "䟛".