HSK V1
Correct

在家

/ zài jiā / 
Strokes

Definition

at home

Example

As a Verb
be at home; be in
1
Wǒ
我
dǎdiànhuà
打电话
de
的
shíhou
时候
nǐ
你
bù
不
zàijiā
在家
  
。

You were out when I called.

2
Zàijiā
在家
chīfàn
吃饭

eat/dine at home/in

As a Verb
remain a layman (as opposed to being a monk or a nun)