Correct

铁窗

/ tiěchuāng /
Strokes

Definition

window with an iron grating (apartment etc)/barred window of a prison cell

Example

As a Noun

window with iron grating—prison bars; prison

1
nián
de
tiěchuāng
铁窗
shēnghuó
生活
shǐ
使
gǎibiàn
改变
le
hěnduō
很多
  

Five years behind bars/in prison changed him dramatically.

2
Shòu
tiěchuāng
铁窗
zhī

lead a hard life in prison

3
Tiěchuāng
铁窗
shēnghuó
生活

prison life; life behind bars