For other meanings of hook, see hook.

In typesetting, the hook (Vietnamese: dấu hỏi) is a diacritic mark placed on top of vowels in the Vietnamese alphabet. In shape it looks like a tiny question mark without the dot underneath. For example, a capital A with a hook is "Ả", and a lower case "u" with a hook is "ủ". It functions as a tone marker. Vowels with this symbol are pronounced with a falling then rising tone. The hook is usually written to the right of the circumflex in conventional Vietnamese orthography.

External links

• More information for typographers

Diacritics | Vietnamese language

Krogig (sin diakritek) | Haken (diakritisches Zeichen) | Dấu hỏi