忠于

忠於

zhōngyú

verb HSK 7-9 #8,621

Meanings

Literally 'loyal toward' — the 于 functions as a preposition connecting loyalty to its object.

他一生忠于自己的信仰。

Tā yìshēng zhōngyú zìjǐ de xìnyǎng.

He was loyal to his beliefs his whole life.

军人应该忠于国家。

Jūnrén yīnggāi zhōngyú guójiā.

Soldiers should be loyal to their country.

grammar

忠于 is always followed by an object: 忠于国家, 忠于人民, 忠于爱情. You cannot use it standalone — unlike 忠诚 which can be used as a standalone adjective.

忠 zhōng

于 yú