You Collection, Upper Volume Radical: Speech (yán) Jiao (falling tone) Page 1146, Entry 13 Yu Pian (Jade Chapters): Pronounced jiao (falling tone) Tang Yun (Tang Rhymes): Pronounced jiao (falling tone) Ji Yun (Collected Rhymes): Pronounced jiao (falling tone) The sound is jiao (falling tone). Shuowen Jiezi (Explanation of Simple and Compound Characters): To shout or cry out loudly. Zuo Zhuan (Chronicle of Zuo): Someone cried out at the Great Temple of Song. In the current edition, it is written as jiao. Also, Guang Ya (Expanded Glossaries): To cry out or call. Classic of Mountains and Seas (Shanhaijing): On Guanti Mountain, there is a beast that looks like an ox with a white tail; its sound is like jiao (falling tone), and it is called Nafu. Commentary: The term jiao (falling tone) resembles the sound of a human call. Also, Yu Pian (Jade Chapters): To speak nonsense. Zhengzitong (True Character Dictionary): Identical to the characters for jiao (falling tone) and jiao (falling tone).