私信 [－－]

Jyutping si1 seon3
Pinyin sī xìn

Definitions (CC-CEDICT)
  1. private correspondence; personal letter
  2. (computing) personal message (PM); to message sb
Definitions (Wiktionary)
  1. noun, Internet
    private message
  2. verb, Internet
    to send a private message to
    (syn.) 私戳
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）