Horn: every letter to copy and paste
A small hook on the upper right of o and u, used in Vietnamese to make the separate vowels ơ and ư.
Lowercase letters with the horn
Uppercase letters with the horn
Combining horn
The combining form is U+031B. It attaches to the character before it, so you can add it to letters that have no precomposed version.
Languages that use it
Read the full guide to the horn
Frequently asked questions
What is the horn used for?
A small hook on the upper right of o and u, used in Vietnamese to make the separate vowels ơ and ư.
How do I add a horn to any letter?
Type the letter, then the combining character U+031B. Most fonts will place the mark over the letter. Use the builder on any letter page to copy the result.
How many letters have a horn?
Unicode has 24 precomposed letters whose first mark is the horn: 12 lowercase and 12 uppercase.