China boasts a wide variety of languages, with more than 80 types of them in 12 branches under five families of languages: Sino-Tibetan, Altaic, Indo-European, Austro-Asiatic, and Austronesian, now in use among its people of different ethnic groups. However, Putonghua , or Mandarin Chinese, has been established as the official language popularized across the whole country. It has also become an international language. See also Mandarin Chinese.