'成品' (chéng pǐn) literally combines '成' (chéng), meaning 'completed' or 'accomplished', and '品' (pǐn), meaning 'item', 'product', or 'article'. Together, they form a compound noun meaning 'finished product' — something that has gone through all necessary manufacturing, assembly, or processing steps and is ready for sale, use, or distribution. It contrasts with raw materials (原材料, yuán cáiliào) or semi-finished goods (半成品, bàn chéng pǐn).

This term is widely used in industrial, commercial, and quality-control contexts — for example, when discussing production lines, inventory management, or product inspections. While it can refer to physical goods like electronics or furniture, it’s also applied to non-tangible outputs such as software releases or published books, as long as they represent a completed, deliverable stage. It carries a neutral, formal register and appears frequently in business reports, factory signage, and technical documentation.