‘纸币’ literally means ‘paper money’ — combining 纸 (zhǐ), meaning ‘paper’, and 币 (bì), meaning ‘currency’ or ‘coin’. Though 币 originally referred to metal coins in ancient times, in modern Chinese it broadly denotes ‘money’ as a unit of currency, especially when paired with modifiers like 纸 (paper) or 硬 (hard). Thus, 纸币 specifically refers to official banknotes issued by a central bank — such as the People’s Bank of China — and excludes coins, digital payments, or foreign currency unless specified.

This term is neutral and widely used in everyday contexts: shopping, banking, travel, and financial discussions. It contrasts with 硬币 (hànbì, ‘coin’) and is often grouped under the broader term 货币 (huòbì, ‘currency’). Unlike colloquial terms like 钱 (qián, ‘money’ — informal and general), 纸币 is precise and formal enough for news reports, textbooks, or official signage, yet common enough for daily conversation.