Radical 2
Radical 2 or radical line () meaning "vertically connected" is one of 6 of the 214 Kangxi radicals that are composed of only one stroke. In the "Kangxi Dictionary", there are only 21 characters (out of 49,030) to be found under this radical. In calligraphy. The only stroke in radical line, known as "shù" "vertical", is called "nǔ" in the eight principles of the character 永 ( "Yǒngzì Bāfǎ") which are the basis of Chinese calligraphy.