Double tilde is the Unicode character at U+0360 in the Combining Diacritical Marks block. Official name: COMBINING DOUBLE TILDE. It is a double diacritic placed between two letters — for example a͠b → a͠b.
Remember
Mark (combining ͠)
Unicode U+0360
Hex entity ͠
Decimal ͠
CSS escape \0360
Named entity (none)
Tip letter + mark + letter
Prefer ͠ or ͠ after the first letter (no named form). Put the second letter immediately after the mark.
Built with Hex: a͠b
Built with Decimal: a͠b
Built with CSS: a͠b
Typed: a͠b o͠o
Order: first letter, then U+0360, then second letter
How It Works
1. Hex: write the first letter, then ͠, then the second letter → a͠b.
2. Decimal: same code point as 864 → ͠ after the first letter. Same result as hex.
3. CSS: use \0360 in content between letters in the string (not an HTML entity). #point::after appends a͠b.
4. Typed / order: paste the combining mark between the two letters in a UTF-8 document.
Pitfalls & Tips
Common mistakes when working with Double Tilde.
Order
Put the mark between letters
Write a͠b, not a lone ͠. The double tilde is meant to span two base characters.
Name
No named entity
There is no HTML5 named entity for U+0360. Use ͠ or ͠.
˜
Not ˜
˜ is the spacing small tilde (U+02DC). ASCII ~ is U+007E. Neither is the combining double tilde.
͡
Not the IPA ligature tie
U+0361 is combining double inverted breve (IPA ligature tie). U+0360 is the double-tilde form.
CSS vs HTML
Do not mix escapes
\0360 belongs in CSS strings. ͠ / ͠ belong in HTML.
Fonts
Diacritic font coverage
Some fonts draw spanning double marks poorly. Prefer a font with solid Combining Diacritical Marks support.
Semicolon
End references
Always finish numeric entities with ; — write ͠, not ͠.
Compatibility
Browser Support
Combining double tilde (U+0360) and its entity forms (͠, ͠, CSS \\0360) are supported in all mainstream browsers. Visible glyphs depend on Combining Diacritical Marks font coverage.
✓ Universal support
Double Tilde (U+0360)
Encode with hex, decimal, CSS escape, or type the combining mark — same code point everywhere encoding is supported.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+0360 / entitiesFull support
Bottom line: Prefer ͠ between two letters in HTML (no named form). Use ͠ when decimal form is required, and \\0360 only inside CSS content.
Remember
Key Takeaways
Unicode: combining double tilde is U+0360 (decimal 864).
HTML: no named entity — use a͠b / a͠b.
CSS: use \0360 between letters inside content.
Meaning: spanning double tilde — not ˜, not ~, not U+0361.
One line:U+0360 → first + ͠ / ͠ + second / CSS \0360.
Frequently Asked Questions
Place ͠ (hex) or ͠ (decimal) between two letters, type the combining mark in UTF-8 between letters, or use CSS \0360 in content between letters. There is no named HTML entity for U+0360.
U+0360 (COMBINING DOUBLE TILDE). Hex 0360, decimal 864. It belongs to the Combining Diacritical Marks block (U+0300–U+036F).
No. Use numeric forms ͠ or ͠ between two base letters. The spacing tilde ˜ uses ˜ (U+02DC) — a different character.
Use it in linguistics or phonetics when a double tilde should span two letters. Prefer U+0361 for the IPA ligature tie (double inverted breve), and ˜ (˜) for a spacing tilde alone.
HTML entities (͠ or ͠) go in markup between two letters. The CSS escape \0360 goes in stylesheet strings (usually content on ::before/::after, between letters in the string).
No. U+0360 is combining double tilde. ˜ is the spacing small tilde U+02DC (˜). U+0361 is combining double inverted breve. ASCII ~ is U+007E.
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Did you know?
Double tilde is Unicode U+0360 (decimal 864) — a combining mark (COMBINING DOUBLE TILDE) in the Combining Diacritical Marks block. There is no HTML5 named entity; use ͠ or ͠ between two letters (e.g. a͠b → a͠b). Related: combining double inverted breve U+0361, spacing tilde ˜ (˜).
