HTML Entity for Uppercase Thorn (Þ)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+00DE
HTML Entity for Uppercase Thorn tutorial illustration

What You'll Learn

How to display the uppercase thorn (Þ) in HTML using named entity, hexadecimal, decimal, and CSS escape methods. Used in Icelandic, Faroese, and Old English, thorn represents the voiceless “th” sound (as in “thin” or “think”). It is U+00DE in the Latin-1 Supplement block and pairs with lowercase þ (U+00FE).

Render it with Þ, Þ, Þ, or CSS escape \00DE. The named entity Þ is often the most readable option in HTML source. Do not confuse Þ (thorn) with Ð (eth, voiced th).

⚡ Quick Reference — Uppercase Thorn Entity

Unicode U+00DE

Latin-1 Supplement

Hex Code Þ

Hexadecimal reference

HTML Code Þ

Decimal reference

Named Entity Þ

Most readable option

Reference Table
Name           Value
────────────   ──────────
Unicode        U+00DE
Hex code       Þ
HTML code      Þ
Named entity   Þ
CSS code       \00DE
Meaning        Latin capital letter thorn
Also known as  Uppercase thorn
Related        U+00FE = þ (þ)
Block          Latin-1 Supplement (U+0080–U+00FF)
1

Complete HTML Example

A simple example showing the uppercase thorn (Þ) using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\00DE";
  }
 </style>
</head>
<body>
<p>Symbol (hex): &#xDE;</p>
<p>Symbol (decimal): &#222;</p>
<p>Symbol (named): &THORN;</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

The uppercase thorn (Þ) and the named entity &THORN; are supported in all modern browsers:

Chrome1+
Firefox1+
Safari1+
Edge12+
Opera4+
Android4.4+
iOS Safari1+

👀 Live Preview

See the uppercase thorn (Þ) in linguistic and language contexts:

Large glyphÞ
IcelandicÞú, Þetta, Það
Named entity&THORN; renders as Þ
Lowercaseþ (U+00FE) — use &thorn;
Not the same aseth Ð (voiced th; see ð) or plain P
Numeric refs&#xDE; &#222; &THORN; \00DE

🧠 How It Works

1

Hexadecimal Code

&#xDE; uses the Unicode hexadecimal value DE to display the character. The x prefix indicates hexadecimal format.

HTML markup
2

Decimal HTML Code

&#222; uses the decimal Unicode value 222 to display the same character. One of the most commonly used methods in HTML.

HTML markup
3

Named Entity

&THORN; is the standard named entity for Þ—readable in source HTML and part of the HTML5 entity set.

HTML markup
4

CSS Entity

\00DE is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.

CSS stylesheet
=

Same visual result

All four methods produce the glyph: Þ. Unicode U+00DE sits in Latin-1 Supplement. Do not confuse Þ (thorn, voiceless th) with Ð (eth, voiced th) or plain P (U+0050). Lowercase equivalent: U+00FE (þ, &thorn;).

✅

Use Cases

The uppercase thorn (Þ) is commonly used in:

🇮🇸 Icelandic

Essential for correct Icelandic spelling at word starts (e.g. Þú, Þetta). Thorn is a core letter of the Icelandic alphabet.

🇫🇰 Faroese

Used in Faroese orthography alongside eth for distinct th sounds.

📚 Old English

Medieval and historical texts, academic resources, and digitized manuscripts using thorn.

🔤 Linguistics

Phonetic notation and language documentation for voiceless dental fricative sounds.

🌐 Multilingual sites

Support proper rendering of Icelandic and Nordic language content on international websites.

♿ Accessibility

Using U+00DE with proper lang attributes (e.g. lang="is") helps assistive technologies pronounce content correctly.

🎨 CSS generated content

Using \00DE in the CSS content property to insert Þ via pseudo-elements.

💡 Best Practices

Do

  • Serve pages as UTF-8; you can type Þ directly in UTF-8 source
  • Use &THORN; for readable HTML when a named form is preferred
  • Set lang="is" or appropriate language attributes on Icelandic content
  • Use \00DE in CSS content when generating the symbol via pseudo-elements
  • Distinguish Þ (thorn, voiceless th) from Ð (eth, voiced th)

Don’t

  • Substitute plain P or Th when Þ is required in Icelandic text
  • Confuse thorn (Þ) with eth (Ð)—they represent different sounds; see lowercase eth
  • Use the incorrect CSS escape \0DE—the correct value is \00DE
  • Put CSS escape \00DE in HTML text nodes
  • Double-encode entity references in dynamically generated HTML

Key Takeaways

1

The named entity is the most readable form

&THORN;
2

Numeric alternatives: hex and decimal

&#xDE; &#222;
3

Unicode U+00DE — LATIN CAPITAL LETTER THORN

4

Voiceless th in Icelandic; lowercase is þ (&thorn;)

5

Previous: Uppercase T Stroke (Ŧ)   Next: Uppercase U

❓ Frequently Asked Questions

Use &THORN; (named), &#xDE; (hex), &#222; (decimal), or \00DE in CSS content. In UTF-8 you can also type Þ directly.
U+00DE (LATIN CAPITAL LETTER THORN). Latin-1 Supplement block. Hex DE, decimal 222. Used in Icelandic, Faroese, and Old English. Lowercase form is U+00FE (þ).
When displaying Icelandic or Faroese text, Old English or medieval content, linguistic resources, or language learning materials that require Þ at word starts or in proper nouns. In UTF-8 pages you can type Þ directly.
The named HTML entity is &THORN;. You can also use &#222; or &#xDE;, or the CSS entity \00DE.
Thorn (Þ, U+00DE) represents the voiceless th sound (as in “thin”). Eth (Ð, U+00D0) represents the voiced th sound (as in “this”). See lowercase eth for the lowercase eth pair. They are distinct letters in Icelandic and Old English.

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About the author

Mari Selvan M P
Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

  • Experience 12 years building web and cloud systems
  • Focus Full Stack Development, AWS, and Developer Education

I write practical tutorials so students and working developers can learn by doing—from databases and APIs to deployment on AWS.

AWS Certified Developer – Associate (Credly)

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