单
Character Story & Explanation
In contemporary China, 单 is indispensable in commercial and administrative settings. It appears in standardized terms like 发票 (fāpiào, official invoice), but also colloquially in phrases like ‘买单’ (mǎidān)—literally ‘buy the bill’, meaning ‘to pay the check’. This phrase entered common usage in the 1990s with the rise of Western-style restaurants and is now documented in the 2020 edition of the Contemporary Chinese Dictionary. It’s also used in government forms (e.g., 申请单, shēnqǐngdān — application form).
The character 单 originated as a variant of 單 (traditional form), which appeared in clerical script (lìshū) during the Han dynasty (206 BCE–220 CE) as a simplified representation of a single banner or standard—symbolizing singularity. Its modern simplified form 单 was officially adopted in 1956 under the PRC’s First Batch of Simplified Characters, retaining the core semantic function of ‘one item’ or ‘document’.
The character 单 (dān) is a deceptively simple yet highly versatile word in modern Chinese. Though its HSK Level 3 status suggests beginner accessibility, its semantic range—from 'single' and 'sole' to 'bill', 'list', and even 'odd number'—requires context-aware usage. Its eight-stroke form, built around the 丷 (dot-dot) radical, reflects classical notions of division or singularity, evolving over centuries into a functional lexical workhorse.
As a noun meaning 'bill', 单 appears ubiquitously in service economies: restaurant checks, utility invoices, and hospital charge slips all bear the label 账单 (zhàngdān) or 收据单 (shōujùdān). Unlike English ‘bill’, which can imply debt or legislation, 单 in this sense emphasizes documentation—a discrete, itemized record of transaction, not obligation itself.
This functional nuance matters in real communication. A customer saying ‘请给我单’ (qǐng gěi wǒ dān) isn’t demanding payment—they’re politely requesting the receipt. Misinterpreting 单 as ‘bill’ in the U.S. legal sense (e.g., ‘a bill of rights’) would cause confusion; instead, it’s always tied to tangible, paper-based or digital transaction records in daily life.
Example Sentences
Common Compounds
Similar Characters — Don't Mix These Up
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