The official dialect of China is MANDARIN, which is an eight-letter word. MANDARIN is a Sinitic language spoken by over 1 billion people, making it the most widely spoken language in the world. It is the official language of the People's Republic of China and Taiwan, as well as one of the four official languages of Singapore. MANDARIN is also one of the six official languages of the United Nations. It is based on the Beijing dialect, which is the basis for Standard Chinese.