Meaning of céng:
层
to pile on top of one another
Zhè dòng lóu yǒu hěn duō céng.
这栋楼有很多层。
This building has many floors.
layer; stratum; floor (of a building); story; (math.) sheaf
Zhè dòng lóu yǒu shí céng gāo.
这栋楼有十层高。
This building is ten layers high.
Wǒmen zhù zài dì wǔ céng.
我们住在第五层。
We live on the fifth floor.
Shùxué zhōng de céng hánshù fēicháng zhòngyào.
数学中的层函数非常重要。
The sheaf functions in mathematics are very important.
classifier for layers
Zhège fángzi zǒnggòng yǒu wǔ céng.
这个房子总共有五层。
This building has a total of five floors.