Tilde overlay is the Combining Diacritical Marks character at Unicode U+0334 (COMBINING TILDE OVERLAY). It is a non-spacing mark placed immediately after a base letter to draw a tilde through it — used in linguistics and phonetics.
Remember
Character ◌̴ (on base letter)
Unicode U+0334
Hex entity ̴
Decimal ̴
CSS escape \0334
Named entity (none)
Not the same U+0330 · U+0303 · ∼
Hex, decimal, and CSS all produce the same combining mark. Write it right after the base letter (a̴ → a̴). There is no named entity.
Using Hex Code: a̴
Using HTML Code: e̴
o̴ (CSS mark on o)
Example: note a̴ carefully
How It Works
1. Hex:U+0334 → ̴ right after a. The browser combines them into a̴.
2. Decimal: same code point as 820 → ̴ after e. Same combining mark.
3. CSS: use \0334 in content (not an HTML entity). #point::after appends the mark after o, producing o̴.
4. Order: the mark must follow the base letter. There is no named HTML entity for this character.
Pitfalls & Tips
Common mistakes when working with Tilde Overlay.
Order
Mark after the base
Write a̴, not the mark alone or before the letter. Combining marks attach to the preceding character.
Named?
No named entity
HTML5 does not define a named entity for U+0334. Use ̴ or ̴.
a̰
Not tilde below
U+0330 places a tilde under the letter. Overlay (U+0334) draws through the glyph.
ã
Not tilde above
U+0303 is combining tilde above (used on this site as “tilde strong”). It sits on top, not through the letter.
Fonts
Diacritic font coverage
Some UI fonts omit less-common combining marks. Prefer a font with Combining Diacritical Marks coverage.
CSS vs HTML
Do not mix escapes
\0334 belongs in CSS strings. ̴ / ̴ belong in HTML after the base letter.
Compatibility
Browser Support
Combining tilde overlay (U+0334) and its entity forms (̴, ̴, CSS \\0334) are supported in all mainstream browsers. Visible glyphs depend on Combining Diacritical Marks font coverage.
✓ Universal support
Tilde Overlay (a̴)
Encode with hex, decimal, or CSS escape — place after the base letter for the same combining mark.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+0334 / entitiesFull support
Bottom line: Prefer ̴ or ̴ after a base letter. Use \\0334 only inside CSS content. There is no named entity.
Remember
Key Takeaways
Unicode: combining tilde overlay is U+0334 (decimal 820).
HTML: use ̴ or ̴after the base letter — no named entity.
One line: base + U+0334 → a̴ / a̴ / CSS \0334.
Frequently Asked Questions
Use ̴ (hex), ̴ (decimal), or the CSS escape \0334 in content. Place the entity immediately after the base letter (e.g. a̴). There is no named HTML entity for U+0334.
U+0334 (COMBINING TILDE OVERLAY). Hex 0334, decimal 820. It belongs to Combining Diacritical Marks (U+0300–U+036F).
No. HTML5 does not define a named entity for this combining mark. Use numeric forms ̴ or ̴.
Use it in linguistics and phonetics when a letter needs a tilde drawn through (overlaid on) it. Prefer U+0303 for a tilde above, U+0330 for a tilde below, and ∼ for a standalone math tilde.
HTML entities (̴ or ̴) go in markup after the base character. The CSS escape \0334 goes in stylesheet strings (usually content on ::before/::after).
No. U+0334 overlays the base letter. U+0330 is tilde below. U+0303 is combining tilde above. They are different combining marks.
🤔
Did you know?
Tilde overlay is Unicode U+0334 (decimal 820) — COMBINING TILDE OVERLAY in Combining Diacritical Marks. HTML5 has no named entity — use ̴ or ̴ right after a base letter. Distinct from tilde below (U+0330), combining tilde above (U+0303), and the math tilde (∼, ∼).
