CJKV

from The Free On-line Dictionary of Computing (8 July 2008)

CJKV

   <character> {CJK} plus {Vietnamese}.  Vietnamese, like the
   other three CJK languages, requires 16-bit {character
   encodings} but it does not use {Han characters}.

   ["CJKV Information Processing: Chinese, Japanese, Korean &
   Vietnamese Computing", Ken Lunde, pub. O'Reilly 1998,
   (http://oreilly.com/catalog/cjkvinfo/)].

   (2001-03-18)