Sichuanese Pinyin (Si⁴cuan¹hua⁴ Pin¹yin¹; ), is a romanization system specifically designed for the Chengdu dialect of Sichuanese. It is mostly used in selected Sichuanese dictionaries, such as the Sichuan Dialect Dictionary, Sichuan Dialect's Vocabulary Explanation, and the Chengdu Dialect Dictionary. Sichuanese Pinyin is based on Hanyu Pinyin, the only Chinese romanization system officially instructed within the People's Republic of China, for convenience amongst users. However, there is also the problem that it is unable to match the phonology of Sichuanese with complete precision, especially in the case for the Minjiang dialect, as there are many differences between Sichuanese and Standard Chinese in phonology.