Chou Collection, Upper Volume Radical: Mouth (kǒu) 啄 Kangxi strokes: 11 Page 194, Entry 30 Pronounced zhuo. Shuowen Jiezi (Explanation of Graphs and Analysis of Characters): To eat as a bird does. Guangyun (Broad Rhymes): To peck as a bird does. Book of Odes (Shijing), Lesser Odes (Xiao Ya): Bringing the flock to peck at the millet. Strategies of the Warring States (Zhanguo Ce): Lowering its head to peck at mosquitoes and gadflies to eat them. Jiyun (Compilation of Rhymes): Also written in the variant form zhuo. Yunhui (Collection of Rhymes): Also written in the variant form zhuo. Also, the sound of tapping on a door. Han Yu, Song of Tapping (Bozhuoxing): Tap, tap, tap, tap, a guest has arrived at the gate. I do not come out to answer, the guest leaves and is angry. Also pronounced hu. Meaning same as above. Jiyun (Compilation of Rhymes): A beak. Yilin (Forest of Changes): The wild duck emerges and submerges, happy and laughing, pecking at itself. Its feathers are smooth and glossy, sharp enough to polish jade. Also refers to a woodpecker. Also pronounced zhou. Identical to the characters for beak. Han Shi Waizhuan (Outer Commentary to the Han School's Book of Odes): Birds with beautiful feathers and curved beaks are feared by other birds. Book of Han (Hanshu), Biography of Dongfang Shuo: Those with raised hindquarters are like cranes leaning down to peck. Commentary by Yan Shigu: Pronounced zhuo (falling tone).