Correct
信函
/ xìnhán /
Strokes
Definition
letter/piece of correspondence (incl. email)
Example
As a Noun
letter; correspondence
1
Xúnjià
询价
xìnhán
信函
letter of inquiry
2
Sīrén
私人
xìnhán
信函
personal correspondence; private letter
3
Shāngyè
商业
xìnhán
信函
business letter
4
Diànzǐ
电子
xìnhán
信函
electronic mail; email
5
Xìnhán
信函
wǎnglái
往来
exchange of letters
6
Kǒushòu
口授
xìnhán
信函
dictate a letter