The noun 大臣 (dàchén) means "minister" or "court official" and refers to high-ranking officials who served a king or emperor in ancient China. It is primarily used in historical contexts, classical stories, and period dramas. In modern Chinese, government ministers are typically called 部长 instead.
大臣们纷纷向皇帝进言。
Dàchénmen fēnfēn xiàng huángdì jìnyán.
The ministers one after another offered advice to the emperor.
这位大臣一生忠心耿耿。
Zhè wèi dàchén yīshēng zhōngxīn gěnggěng.
This minister was loyal and devoted his entire life.
皇帝召集所有大臣商量国事。
Huángdì zhàojí suǒyǒu dàchén shāngliáng guóshì.
The emperor summoned all the ministers to discuss state affairs.