HTML Entity for Lowercase O Barred (ɵ)

Beginner
5 min read
Updated: Sep 2026
1 example
Unicode U+0275

What Is the Lowercase O Barred Entity?

Lowercase barred o (ɵ) is the IPA Extensions character at Unicode U+0275 (LATIN SMALL LETTER BARRED O). It looks like an o with a horizontal stroke through the middle — the IPA symbol for the close-mid central rounded vowel. You can paste ɵ in a UTF-8 file, or use a numeric character reference when encoding must be explicit.

Remember
Character     ɵ
Unicode       U+0275
Hex entity    ɵ
Decimal       ɵ
CSS escape    \0275
Named entity  (none)
Capital       Ɵ (U+019F)
IPA           Close-mid central rounded vowel

All of these produce the same glyph: ɵ. Prefer typing or pasting ɵ in UTF-8 pages; use entities for CSS content, generated markup, or when encoding must be explicit.

Quick Reference

One table for every form you will actually use.

FormCodeWhere it goes
Direct characterɵHTML text (UTF-8 default)
Hex entityɵHTML markup
Decimal entityɵHTML markup
CSS escape\0275Stylesheet content
Named entity—Not defined in HTML5

When to Use Which

SituationUse
IPA / linguistics text (UTF-8)Type or paste ɵ
Need an entity in HTML sourceɵ or ɵ
Generated text via ::before / ::aftercontent: "\0275"
Looking for a named entityDoes not exist — use numeric form
Danish/Norwegian ø insteadSee Lowercase O Slash (ø)

Live Preview

Lowercase barred o rendered in comparison contexts.

Sample text barred o: ɵ
Large glyph ɵ
Case pair Ɵ (U+019F) / ɵ (U+0275)
With entities Hex: ɵ | Decimal: ɵ
Not the same o · ø (ø) · ó (ó)

Complete HTML Example

One page that shows barred o with the hex entity, decimal entity, CSS escape, and a typed character. Use View Output or open the live editor.

Hex + Decimal + CSS + Typed

All four ways to produce ɵ in a single document.

html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>O Barred (ɵ) in HTML</title>
  <style>
    #point::after {
      content: "\0275";
    }
  </style>
</head>
<body>
  <p>Barred O using Hex Code: &#x0275;</p>
  <p>Barred O using HTML Code: &#629;</p>
  <p id="point">Barred O using CSS Entity: </p>
  <p>Typed / pasted: ɵ</p>
  <p>IPA: close-mid central rounded vowel</p>
</body>
</html>
Try It Yourself

How It Works

1. Hex: U+0275 → &#x0275; in HTML. The browser turns it into ɵ.

2. Decimal: same code point as 629 → &#629;. Same result as hex.

3. CSS: use \0275 in content (not an HTML entity). #point::after appends that ɵ after the paragraph text.

4. Typed ɵ: fine in UTF-8 documents. All four encoding lines show the same glyph.

Pitfalls & Tips

Common mistakes when working with the o barred entity.

Named?

No named entity

HTML5 does not define a named entity for ɵ. Use numeric forms.

CSS vs HTML

Do not mix escapes

\0275 belongs in CSS. &#x0275; / &#629; belong in HTML.

Look-alikes

Not ø or o

Danish/Norwegian ø is &oslash; (U+00F8) with a diagonal stroke. Barred o ɵ has a horizontal bar (U+0275).

IPA

Close-mid central rounded

In IPA, ɵ marks a specific vowel quality — do not swap it for similar-looking Latin letters.

Fonts

Glyph coverage

Some fonts omit IPA Extensions. If ɵ looks like a box, switch to a font that includes it.

UTF-8

Declare charset

If you paste ɵ directly, serve the page as UTF-8 with <meta charset="UTF-8">.

Browser Support

Lowercase o barred (U+0275) and its numeric entity forms (&#x0275;, &#629;, CSS \\0275) are supported in all mainstream browsers. Glyph availability depends on the font.

✓ Universal support

O Barred (&#x0275;)

Paste ɵ, or encode with hex, decimal, or CSS escape — same code point everywhere.

100% Browser coverage
Google Chrome Supported
Yes
Microsoft Edge Supported
Yes
Mozilla Firefox Supported
Yes
Apple Safari Supported
Yes
Opera Supported
Yes
Internet Explorer All versions
Yes
U+0275 / entities Full support

Bottom line: Use a pasted ɵ in UTF-8 text when you can. Prefer &#x0275; or &#629; in HTML when encoding must be explicit, and \\0275 only inside CSS content.

Key Takeaways

  • Unicode: barred o is U+0275 (decimal 629), IPA Extensions.
  • HTML: use &#x0275; or &#629; when you need an entity.
  • CSS: use \0275 inside content for generated text.
  • Watch out: not the same as Danish/Norwegian ø (ø).

One line: U+0275 → paste ɵ, or encode as &#x0275; / &#629; / CSS \0275.

Frequently Asked Questions

Use &#x0275; (hex), &#629; (decimal), or the CSS escape \0275 in the content property. All render ɵ. There is no named HTML entity for this character.
U+0275 (LATIN SMALL LETTER BARRED O). Hex 0275, decimal 629. It belongs to the IPA Extensions block and represents the close-mid central rounded vowel in the International Phonetic Alphabet.
No. HTML5 does not define a named entity for this character. Use numeric references &#629; or &#x0275; when you need an entity form.
Use it for IPA phonetic transcription, linguistics documentation, some Nordic orthographies, CSS-generated content, or anywhere you must encode ɵ explicitly. Prefer typing or pasting ɵ directly when your file is UTF-8.
HTML entities (&#629; or &#x0275;) go in markup. The CSS escape \0275 is used in stylesheets (usually in the content property of ::before/::after). Both render ɵ.
Plain o is U+006F. Danish/Norwegian ø is &oslash; (U+00F8) — a different letter with a diagonal stroke. Barred o ɵ is U+0275 — an IPA Extensions letter with a horizontal bar through the o.

Did you know?

Lowercase barred o (ɵ) is Unicode U+0275 (decimal 629) in the IPA Extensions block. Official name: LATIN SMALL LETTER BARRED O. HTML5 has no named entity — use &#x0275; or &#629;. It is the IPA symbol for the close-mid central rounded vowel and appears in some Nordic orthographies. Capital is Ɵ (U+019F).

Next: Lowercase O Breve

Learn the HTML entity for ŏ (o with breve) — next in this sequence.

Continue tutorial →

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.

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