Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Radical 2 meaning "vertical stroke" is one of six of the 214 Kangxi radicals that are composed of only one stroke. In the Kangxi Dictionary there are only 21 characters (out of 40,000) to be found under this radical.The following is a list of all 214 Kangxi radicals, used originally in the 1615 Zihui and adopted by the 1716 Kangxi dictionary, in order of the number of strokes along with some examples of characters containing them. This list has become such a common standard that sometimes radicals are referred to by number alone.