There are two types of dictionaries regularly used in the Chinese language: 'character dictionaries' (字典; zìdiǎn) list individual Chinese characters, and 'word dictionaries' (辞典; 辭典; cídiǎn) list words and phrases. Because tens of thousands of characters have been used in written Chinese, Chinese lexicographers have developed a number of methods to order and sort characters to facilitate more convenient reference.
Chinese dictionaries have been published for over two millennia, beginning in the Han dynasty. This is the longest lexicographical history of any language. In addition to works for Mandarin Chinese, beginning with the 1st-century CE Fangyan dictionaries also been created for the many varieties of Chinese. One of the most influential Chinese dictionaries ever published was the Kangxi Dictionary, finished in 1716 during the Qing dynasty, with the list of 214 Kangxi radicals it popularized are still widely used.