Chou Collection, Upper Volume Radical: Mouth (kǒu) 呦 Kangxi strokes: 8 Page 181, Entry 32 Pronounced yōu. Shuowen Jiezi (Shuowen) states it is the sound of a deer calling. Book of Odes (Shijing), Minor Odes of the Kingdom: "The deer call out with yōu yōu." Shuowen Jiezi (Shuowen) notes it is sometimes written in a variant form. Yupian (Yupian) notes it is sometimes written in a variant form. Also, pronounced yōu. Also, pronounced yǒu (rising tone). The meaning is the same. Also, pronounced yào. It means to teach.