Pronounced cu hong (falling tone) in "Tang Yun" and "Zheng Yun", and cu cong (falling tone) in "Ji Yun", pronounced the same as "cong". "Shuowen Jiezi" explains it as the appearance of grass gathering and growing. Also, "Yun Hui" explains it as the meaning of a tree trunk. "Zheng Zitong" states that this character is the same as "cong". ○ Note: The character "cong" meaning gathering originally had its own intrinsic meaning. This character should only be interpreted according to "Shuowen Jiezi", and the explanation in "Yun Hui" should not be followed.