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Seal Western Han 202 BC-9 AD 
Seal Shuowen ~100 AD Regular Modern
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Changed fields: gloss, hint, originalMeaning, isVerified, customSources
Original meaning: water-level
Phonosemantic compound. 氵 represents the meaning and 隼 represents the sound. Based on the original meaning "water-level", a tool to check the flatness of surfaces. The meaning later shifted to "accurate", "rule", and "approve".
Components
Character Evolution
Historical Pronunciations
| Middle Chinese | Old Chinese | Gloss | |
|---|---|---|---|
| Baxter-Sagart | tsywinX | turʔ | water-level |
說文解字
《說文》：“準，平也。从水，隼聲。”
Sources
- Character origin
- 漢語多功能字庫
- Readings & variants
- Unicode
- Historical pronunciations
- Baxter-Sagart
- Historical images
- Academia Sinica
- Etymology
- Shuowen Jiezi (說文解字)