From WordNet (r) 3.0 (2006) [wn]:
Vietnamese
adj 1: of or relating to or characteristic of Vietnam or its
people or its language ; "the Vietnamese countryside";
the Vietnamese tones"; "Vietnamese boat people"
n 1: a native or inhabitant of Vietnam [syn: Vietnamese,
Annamese]
2: the Mon-Khmer language spoken in Vietnam [syn: Vietnamese,
Annamese, Annamite]
From The Free On-line Dictionary of Computing (8 July 2008) [foldoc]:
Vietnamese
<human language> 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.
(2001-01-01)