Correct

塌陷

/ tāxiàn / 
Strokes

Definition

to subside/to sink/to cave in

Example

As a Verb

sink; subside; cave in; settle

1
Qiángbì
墙壁
shàng
上
de
的
lièfèng
裂缝
shì
是
yóu
由
dìmiàn
地面
tāxiàn
塌陷
yǐnqǐ
引起
de
的
  
。

The crack in the wall was caused by the ground settling.

2
Zhè
这
zuò
座
lóu
楼
de
的
dìjī
地基
tāxiàn
塌陷
le
了
  
。

The foundations of the building have sunk/subsided.

3
Dìjiào
地窖
tāxiàn
塌陷
le
了
  
。

The cellar caved in.

4
Miànjiá
面颊
tāxiàn
塌陷

with sunken/hollow cheeks; one's cheeks sunk in