Radical 18
Chinese character radical
title: "Radical 18" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["kangxi-radicals", "simplified-chinese-radicals", "kyōiku-kanji"] description: "Chinese character radical" topic_path: "geography/china" source: "https://en.wikipedia.org/wiki/Radical_18" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Chinese character radical ::
::data[format=table title="Infobox Kangxi radical"]
| Field | Value |
|---|---|
| 18 | uni |
| meaning | knife |
| pny | dāo |
| bopo | ㄉㄠ |
| wade | tao1 |
| jyutping | dou1 |
| yale | dou1 |
| poj | to |
| onyomi | トウ tō |
| kunyomi | かたな katana |
| jp | 刀 katana |
| hang | 칼 kal |
| hanja | 도 do |
| hanviet | đao |
| :: |
|18|uni=5200 |meaning=knife |pny= dāo |bopo= ㄉㄠ |wade= tao1 |jyutping= dou1 |yale= dou1 |poj= to |onyomi= トウ tō |kunyomi= かたな katana |jp= 刀 katana |hang= 칼 kal |hanja= 도 do |hanviet= đao |meaning=*component-only side form of *刀 |cn=立刀旁 lìdāopáng |jp=立刀/りっとう rittō
Radical 18 or radical knife (刀部) meaning "knife" is one of 23 Kangxi radicals (214 radicals total) composed of 2 strokes.
When appearing at the right side of a Chinese character, it usually transforms into 刂.
In the Kangxi Dictionary, there are 377 characters (out of 49,030) to be found under this radical.
刀 is also the 22nd indexing component in the Table of Indexing Chinese Character Components predominantly adopted by Simplified Chinese dictionaries published in mainland China. Two associated indexing components, 刂 and ⺈, are affiliated to the principal indexing component 刀.
Evolution
File:刀-oracle.svg|Oracle bone script character File:刀-bronze-shang.svg|Bronze script character File:刀-bigseal.svg|Large seal script character File:刀-seal.svg|Small seal script character
Derived characters
::data[format=table]
| Strokes | Characters |
|---|---|
| +0 | 刀 刁 刂component only |
| +1 | 刃SC/KO/刃TC/刃JP 刄 (=刃) |
| +2 | 刅 分 切 刈 |
| +3 | 刉 刊 刋 (=刊) 刌 刍SC (=芻 - 艸) |
| +4 | 刎 刏 刐 刑 划 刓 刔 刕 刖 列 刘SC (=劉) 则SC (=則) 刚SC (=剛) 创SC (=創) |
| +5 | 刜 初 刞 刟 删SC variant (=刪) 刡 刢 刣 判 別TC/JP variant 刦 (=劫 - 力) 刧 (=劫 - 力) 刨 利 刪TC/JP variant 别SC variant (=別) 刬SC (=剗) 刭SC (=剄) |
| +6 | 刮 刯 到 刱 (=創) 刲 刳 刴 (=剁) 刵 制 刷 券 刹SC/JP (=剎) 刺 刻 刼 (=劫 - 力) 刽SC (=劊) 刾SC (=㓨) 刿SC (=劌) 剀SC (=剴) 剁 剂SC (=劑) |
| +7 | 剃 剄 剅 剆 則 剈 剉 削 剋 剌 前 剎 剏 (=創) 剐SC (=剮) 剑SC (=劍) |
| +8 | 剒 剓 剔 剕 剖 剗 剘 剙 (=創) 剚 剛 剜 剝 剞 剟 剠 剡 剢 剣JP (=劍) 剤JP (=劑) 剥SC/JP (=剝) 剦 (=閹 - 門) 剧SC (=劇) 剮GB TC variant |
| +9 | 剨 剪 剫 剬 剭 剮Traditional variant 副 剰JP (=剩) 剱JP nonstandard (=劍) |
| +10 | 剩 割 剳 剴 創 剶 |
| +11 | 剷 剸 剹 剺 剻 剼 剽 剾 剿 |
| +12 | 劀 劁 劂 劃 劄 |
| +13 | 劅 劆 劇 劈 劉 劊 劋 劌 劍 劎 (=劍) 劏 |
| +14 | 劐 劑 劒 (=劍) 劓 劔 (=劍) |
| +15 | 劕 |
| +17 | 劖 |
| +19 | 劗 劘 |
| +21 | 劙 劚 |
| :: |
Sinogram
As an isolated character it is one of the kyōiku kanji or a kanji taught in second grade.
References
Literature
- Leyi Li: “Tracing the Roots of Chinese Characters: 500 Cases”. Beijing 1993,
References
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