Vietnamese, formerly known under French colonization as Annamese, is the national and official language of Vietnam. It is the mother tongue of the Vietnamese people, who constitute 86% of Vietnam's population, and of about three million overseas Vietnamese, most of whom live in the United States. It is also spoken as a second language by many ethnic minorities of Vietnam. It is part of the Austroasiatic language family, of which it has the most speakers by a significant margin (several times larger than the other Austroasiatic languages put together). Much vocabulary has been borrowed from Chinese, especially words that denote abstract ideas in the same way European languages borrow from Latin and Greek, and it was formerly written using the Chinese writing system, albeit in a modified format and was given vernacular pronunciation. The Vietnamese writing system in use today is an adapted version of the Latin alphabet, with additional diacritics for tones and certain letters. As the national language of the majority ethnic group, Vietnamese is spoken throughout Vietnam by the Vietnamese people, as well as by ethnic minorities. It is also spoken in overseas Vietnamese communities, most notably in the United States, where it has more than one million speakers and is the seventh most-spoken language (it is 3rd in Texas, 4th in Arkansas and Louisiana, and 5th in California). In Australia, it is the sixth most-spoken language.

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