被
Pinyin: bèi
passive marker (by)
Example sentence
蛋糕被弟弟吃了。
Dàngāo bèi dìdi chī le.
The cake was eaten by my little brother.
What 被 means
被 (bèi) is a Chinese word meaning “passive marker (by)”. It belongs to the Grammar Words topic and appears at HSK 3, so it is one of the words worth learning early when you study Chinese.