A barcode is a machine-readable pattern of parallel lines (bars) and spaces of varying widths, used to encode product information such as price, manufacturer, or inventory number. The word 条形码 literally breaks down as 条 (tiáo), meaning 'strip' or 'bar'; 形 (xíng), meaning 'shape' or 'form'; and 码 (mǎ), meaning 'code' or 'symbol'. Together, they describe a 'strip-shaped code' — an accurate, intuitive description of its visual structure and function.

This term is widely used in retail, logistics, libraries, and digital payment systems across China. You’ll see barcodes on supermarket items, delivery packages, train tickets, and even QR-code-linked receipts. While QR codes (二维码) are increasingly common, traditional linear barcodes remain the standard for most physical goods due to their simplicity and reliability with standard scanners.