Chen Collection, Lower Volume Radical: Lack (qiàn) Kangxi Strokes: 9 Page 566, Entry 22 Pronounced xu. According to the Analytical Dictionary of Characters (Shuowen Jiezi), it refers to blowing air. Another interpretation describes the appearance of smiling. In the Rhapsody on the Zither (Qin Fu) by Ji Kang: People who are content hear the sound of the zither and become joyful and happy, laughing heartily, dancing with hands and feet, and brimming with delight. The commentary states: Xu, the appearance of smiling. Also pronounced yu. According to the Classified Compendium (Leipian), another interpretation is to yawn. Pronounced xu. Meaning is the same. Also written as xu. Pronounced xu. Same as xu (to warm something with breath). In the Classic of the Original Treasure (Yuanbao Jing): The many gather in abundance, breathing warmth with joy. The commentary says: The many refers to the great number of people wherever one goes. Xu refers to the joy of the people in the area being governed. According to the Six Scripts Clarified (Liushu Gu), xu means to blow gently. In general, xin, xi, she, xia, and he all refer to inhaling air. Xi, xu, xu, hu, and he all refer to exhaling air. Broad, narrow, light, and heavy are based on the sounds produced. Xu and he belong to the yang category; chui and hu belong to the yin category. If one wishes to warm something, one uses xu to blow on it; if one wishes to cool something, one uses chui to blow on it. It is also used interchangeably with xu (to warm).