The Chinese word **标识** (biāoshì), meaning "sign," "mark," or "identifier," is a **combined-meaning compound** (并列式) formed by joining two synonymous or semantically related characters. The first character, **标** (biāo), originally meant the top of a tree and by extension carries the sense of "mark," "sign," or "standard." The second character, **识** (shí/zhì), means "to know," "to recognize," or "a mark." When combined, their meanings merge to create a more specific and reinforced concept: **标** provides the notion of a visible or external sign, while **识** contributes the idea of something meant to be recognized or identified, together forming the complete idea of a distinguishing symbol or label.