Originally used for an emperor's decree; now used to describe words of great authority or commands that cannot be changed, often said with sarcasm.

Jinkouhe District of Leshan City [[乐山市|樂山市|le4 shan1 shi4]], Sichuan Province

(literary) a metal bell with a wooden clapper used in ancient times by officials to gather the public for proclamations; now used to describe a teacher or person who spreads important teachings and moral principles

Jinkouhe district of Leshan city [[乐山|樂山|le4 shan1]], Sichuan province