Chen Collection, Middle Volume Radical: Tree (mù) Kangxi Strokes: 16 Page 555, Entry 02 Pronounced zēng. According to the Rhyme Summary (Yunlue), it refers to gathering firewood to dwell upon. In the Book of Rites (Liji), specifically the section on the Evolution of Rites (Liyun), it states that the ancient kings did not yet have houses, and in summer they would live in nests made of piled firewood. The commentary notes that during hot weather, they would gather wood and reside on top of it. Also, according to the Explaining Graphs and Analyzing Characters (Shuowen), it refers to high structures without roofs in the northern regions. In the Western Capital Rhapsody (Xijing Fu) by Zhang Heng, it is mentioned alongside rafters and ridges. Also, pronounced zéng. It refers to a place where pigs sleep. According to the Regional Speech (Fangyan) by Yang Xiong, a pig pen or bedding is called a zēng. Also, pronounced céng. According to the Broad Elegant (Boya), it refers to an animal pen.