HSK V3
Correct

通信

/ tōngxìn / 
Strokes

Definition

to correspond (by letter etc)/to communicate/communication

Example

As a Verb

correspond; communicate by letter; be in correspondence (with sb)

1
Wǒmen
我们
jī
几
nián
年
qián
前
céngjīng
曾经
tōngguò
通过
xìn
信
  
。

We corresponded a few years ago.

2
Tōngxìn
通信
dìzhǐ
地址

postal/mailing address

3
Kāishǐ
开始
tōngxìn
通信

enter into correspondence (with sb)

4
Bǎochí
保持
tōngxìn
通信

hold/keep up correspondence (with sb)

As a Verb

transmit/convey message; pass on/convey information

As a Noun

communication