Meaning of cùn:
cùn
寸
Measure Word
a unit of length; inch; thumb
Zhè zhāng zhuōzi de kuāndù dàyuē shì wǔ cùn.
这张桌子的宽度大约是五寸。
The width of this table is approximately five inches.
Zhège zhuōzi yǒu sān cùn gāo.
这个桌子有三寸高。
This table is three inches tall.
Tā de shēngāo zhǐ chà yī cùn.
他的身高只差一寸。
His height is only one inch different.