Zi Collection, Page Position: Upper, Radical: Grass (cǎo), Page 125, Entry 01 "With a sound like rumbling thunder" — "Guangyun" and "Jiyun" state that this character is pronounced "bèng" (with a rising tone), and its meaning is the sound of thunder. Additionally, "Zihui Bu" records that Lang Renbao stated: The collected works of Huang Tingjian contain characters like "chōng bèng," which is a dialect of Sichuan.