This is the 2925th most frequent Chinese word.
沈
"沈" means "sink" or "submerge," and it can also be a surname.
The word 沈 (沈船) is used here to describe ships that have sunk to the bottom of the lake.
这个湖泊非常深，水里有许多沉船。
This lake is very deep; there are many sunken ships in the water.
The word 沈 (沉稳) is used here metaphorically to describe someone's composed and stable demeanor.
他在思考问题时总是显得很沉稳。
He always appears very steady when he thinks about problems.
The word 沈 (沉默) here illustrates a state of silence or inactivity.