Tang Rhyme (Tangyun) pronounces it as chou. This is the original meaning of the character. Explaining Characters and Writing (Shuowen Jiezi) defines it as to pull. Some versions write it with the chou radical, while others write it with the xiu radical. For a detailed explanation, see the entry for chou. Also, Collected Rhymes (Jiyun) pronounces it as chou, with the same sound as chou. It is also pronounced as liu, with the same sound as liu. The meaning is the same. It is also pronounced as liu, with the same sound as liu. It means to spread out soil when building a wall. The annotations to the Book of Odes (Shijing), Lesser Odes, state that the term zhuo refers to the spreading of soil. The commentary explains that this is the term for smoothing things out by hand. Note that according to Lu Deming’s Sound and Meaning, the three pronunciations in the level tone and entering tone mentioned above are still adopted.