Standard Chinese or Modern Standard Chinese, also known as Mandarin, Putonghua, Guoyu and Modern Standard Mandarin, is a standardized variety of Chinese and the official language of the People's Republic of China and the Republic of China (Taiwan), and is one of the four official languages of Singapore.

The phonology of Standard Chinese or Standard Mandarin is based on the Beijing dialect, but its vocabulary is drawn from the large and diverse group of Chinese dialects spoken across northern, central and southwestern China, a linguistic area whose varieties are collectively known as Mandarin Chinese. The grammar is standardized to the body of modern literary works that define written vernacular Chinese (originally Baihua), the colloquial alternative to Classical Chinese developed around the turn of the 20th century in China. The name "Mandarin" originally referred to the language used by the imperial court in Beijing and sometimes by imperial officials elsewhere , and as such was adopted as a synonym for Modern Standard Chinese in the 20th century, but the term became ambiguous as its use was extended in the field of linguistics to the various Northern dialects of Chinese. This article will use the phrase "Mandarin dialects" for this broader usage. (wikipedia)