Zheng, a state during the Zhou Dynasty located in modern-day Henan province; also used as a shorthand for 郑州 zhèng​zhōu; (surname) Zheng

a vassal state during the Zhou Dynasty located in present-day Henan and Hebei provinces

Connects a describing word or phrase to the noun it describes, similar to 的 de but used in formal or literary writing.

sound; voice; noise; something that can be heard