The List of Unicode radicals comprises those Unicode characters that represent radical components of CJK characters, Tangut characters or Yi syllables. These are used primarily for indexing characters in dictionaries. There are two CJK radicals blocks: the "Kangxi Radicals" block that includes the 214 standard radicals used in the Kangxi Dictionary; and the "CJK Radicals Supplement" block that includes 115 radical components used in other modern dictionaries, including simplified Chinese and Japanese radicals forms.