Chinese Sign Language (abbreviated CSL or ZGS; simplified Chinese: 中国手语; traditional Chinese: 中國手語; pinyin: Zhōngguó Shǒuyǔ) is the official sign language of the People's Republic of China. It is unrelated to Taiwanese Sign Language and is known in the Republic of China as Wénfǎ Shǒuyǔ (simplified Chinese: 文法手语; traditional Chinese: 文法手語; lit. 'grammatical sign language').