Word: 私信 (sīxìn) 私信 dictionary entry sīxìn private correspondence; personal message (PM) Full dictionary entry for 私信 Example sentences using 私信 2 sentences, showing page 1 of 1. 你看到我的私信了吗？ Nǐ kàndào wǒ de sīxìn le ma? Did you see my private message? 她只在私信里回了我。 Tā zhǐ zài sīxìn lǐ huíle wǒ. She only replied to me in a private message.