私信

Traditional form:

私信

Pinyin (reading):

sīxìn

Definitions:

• private correspondence; personal letter
• (computing) personal message (PM); to message sb

Characters:

• 私 - personal, private, secret; selfish
• 信 - to trust, to believe; letter, sign

Traditional characters:

• 私 - personal, private, secret; selfish
• 信 - to trust, to believe; letter, sign