签署
qiānshǔ · HSK 7
sign/initial (a document)
✍️📄 签 sign + 署 office: put your signature on an official document
签 — bamboo radical 竹 (⺮) + 佥 (qiān, phonetic)
Originally written 籤, this character depicts bamboo strips (⺮) used as markers, tags, or lots drawn for divination. The component 佥 supplies the sound. Over time the meaning broadened from physical bamboo slips to labels, signatures, and signing one's name.