Hungarian has seven short vowels (a, e, i, o, u, ö, ü) including the front unrounded vowels ö and ü. The long equivalents of the first five are written with the acute accent (á, é, í, ó, ú). (The accented a and e is not really just a longer version but articulated differently.)
The double acute acts as combined acute with umlaut, giving the longer version of ö and ü.
The codes are supported in the ISO 8859-2 and UTF-8 codepages, the letters are:
| ő | U0151 | latin small letter o with double acute |
|---|---|---|
| ű | U0171 | latin small letter u with double acute |
| Ő | U0150 | latin capital letter o with double acute |
| Ű | U0170 | latin capital letter u with double acute |