The Chinese word 快递 (kuàidì), meaning "express delivery" or "courier", is a modern compound formed by combining the character 快 (kuài), meaning "fast" or "quick", with 递 (dì), meaning "to hand over", "to pass", or "to deliver". The term is a straightforward and logical semantic compound where the first element describes the manner (fast) and the second specifies the action (deliver), creating a precise concept for the rapid transportation and handoff of goods, perfectly capturing the essence of the service it names.