1. [n]  the Mon-Khmer language spoken in Vietnam
2. [n]  a native or inhabitant of Vietnam
3. [adj]  of or relating to or characteristic of the people of Vietnam; "Vietnamese boat people"
4. [adj]  of or relating to the vietnamese language; "Vietnamese tones"
5. [adj]  of or relating to Vietnam; "the Vietnamese countryside"

Vietnamese
With Pimsleur Language Programs you don`t just study a language, you learn it the same way you mastered English! And because the technique relies on interactive spoken language training, the Pimsleur Language Programs are totally audio -- no books are needed! The Pimsleur programs provide a method of self-practice with an expert teacher and native speakers in lessons specially designed to work with the way the mind naturally acquires language -- vocabulary, pronunciation and grammar are all learned together without mindless memorization. Using a unique method of memory recall developed by renowned linguist, Dr. Paul Pimsleur, the programs teach listeners to combine words and phrases to express themselves the way native speakers do. By simply listening and responding to a native speaker in thirty minute recorded lessons, students learn a new language at their own pace -- comfortably and effectively. Using the same convenient Pimsleur Method, Compact Programs are designed for those who wish to learn less commonly studied languages. Whether for business or pleasure, each Compact Program provides the essential spoken language skills that students need, in the language of their choice.

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An Asian language that, like other CJKV languages, requires 16-bit character encodings but, unlike them, does not use Han characters.

While normal Vietnamese has not used Han characters since the 18th century, the standards TCVN 5773 and TCVN 6056 contain Han characters and may be used by computers and academics.