Tang Rhymes (Tang Yun) states it is pronounced lu. Collected Rhymes (Jiyun) states it is pronounced long. The sound is the same as lu (rising tone). Explaining Graphs and Analyzing Characters (Shuowen Jiezi) defines it as a covered corridor. Jade Pages (Yupian) defines it as a treasury or government office. Extensive Refinements (Guangya) defines it as a small hut. Additionally, Collected Rhymes (Jiyun) states it is pronounced long. It is read as the level tone of lu. The meaning is the same. In Explaining Graphs and Analyzing Characters (Shuowen Jiezi), it is sometimes also written in a variant form (zhuan).