title: Radical 1
text: # Radical 1
  
  Radical 1 or radical one (一部) meaning "one" is one of the 6 Kangxi radicals (214 radicals in total) composed of 1 stroke.
  
  In the Kangxi Dictionary, there are 60 characters (out of 47,043) to be found under this radical.
  
  一 is also the 1st indexing component in the Table of Indexing Chinese Character Components predominantly adopted by Simplified Chinese dictionaries published in mainland China.
  
  ## Evolution
  
  * Large seal script character
  * Small seal script character
  
  ## Derived characters
  
  | Strokes | Characters |
  | - | - |
  | +0 | 一 |
  | +1 | 丁 丂 七 丄 丅 丆 |
  | +2 | 万 (also SC/JP form of 萬 -> 艸) 丈 三 上 下 丌 $与^{SC}/与^{JP}$ (also SC/JP form of 與 -> 臼) |
  | +3 | 不 丏 丐 $丑^{SC/JP}/丑^{TC}$ (also SC form of 醜 -> 酉) 丒 (=丑) $专^{SC}$ (=專 -> 寸) |
  | +4 | 且 丕 世 丘 丙 $业^{SC}$ (=業 -> 木) $丛^{SC}$ (=叢 => 又) $东^{SC}$ (=東 -> Radical 75) $丝^{SC}$ (=絲 -> 糸) |
  | +5 | 丞 丟 丠 $両^{JP}$ (=兩 -> 入) |
  | +6 | 丣 $两^{SC}$ (=兩 -> 入) $严^{SC}$ (=嚴 -> 口) |
  | +7 | 並 $丧^{SC}$ (=喪 -> 口) |
  
  ## In calligraphy
  
  The only stroke in radical one, known as 橫/横 héng "horizontal", is called 策 cè in the eight principles of the character 永 (永字八法 Yǒngzì Bāfǎ) which are the basis of Chinese calligraphy.
  
  ## Sinogram
  
  As an isolated character it is one of the Kyōiku kanji or Kanji taught in elementary school in Japan. It is a first grade kanji.
  
  