‘签到’ (qiān dào) literally combines ‘签’ (to sign, as in signing one’s name) and ‘到’ (to arrive or be present), forming a compound verb meaning ‘to sign in’—a formal act of recording one’s arrival at a place or event. It is commonly used in workplaces, schools, conferences, and online platforms to confirm attendance or participation.

This verb reflects a cultural emphasis on accountability and order in group settings. Unlike casual greetings like ‘你好’, 签到 carries procedural weight: it often involves writing your name on a physical sheet, scanning a QR code, or tapping an ID card. It implies official recognition—not just showing up, but being officially registered as present. While the characters individually have broader meanings, together they function exclusively as a fixed verb phrase with no noun or adjective usage in standard modern Chinese.