The Chinese word **刀片** (dāopiàn, meaning "blade" or "razor blade") is a compound noun formed through semantic combination. It consists of two characters: **刀** (dāo), meaning "knife" or "sword," which establishes the core category of a cutting instrument, and **片** (piàn), meaning "slice," "flake," or "thin piece," which describes the object's physical form. Together, they create a modifier-head structure where **片** is the semantic head (a thin piece), and **刀** specifies its type or function (a thin piece *for a knife/cutting*). This logical pairing directly yields the meaning of a thin, sharp piece of metal used for cutting.