HTML Entity for Reversed R with Fishhook (ɿ)

Beginner
5 min read
Updated: Sep 2026
1 example
Unicode U+027F

What Is Reversed R with Fishhook?

Reversed r with fishhook (ɿ) is the IPA Extensions character at Unicode U+027F (LATIN SMALL LETTER REVERSED R WITH FISHHOOK). It is used in phonetic and linguistic notation. There is no named HTML entity. Despite the legacy URL slug uppercase-j-reverse-fishhook, this is a lowercase IPA letter — not an uppercase J.

Remember
Character     ɿ
Unicode       U+027F
Named entity  (none)
Hex entity    ɿ
Decimal       ɿ
CSS escape    \027F
Not the same  ɾ · r · J

Hex, decimal, CSS, and a typed character all produce the same glyph: ɿ. Prefer ɿ in HTML markup. Do not confuse it with r with fishhook (U+027E) or plain r.

Quick Reference

One table for every form you will actually use.

FormCodeWhere it goes
Hex entityɿHTML markup (best default)
Decimal entityɿHTML markup
CSS escape\027FStylesheet content
Direct characterɿUTF-8 HTML text
Named entityNoneUse hex or decimal instead
BlockIPA ExtensionsU+0250–U+02AF

When to Use Which

SituationUse
Reversed r with fishhookɿ or ɿ
Generated text via ::before / ::aftercontent: "\027F"
Alveolar tap / flap (fishhook r)Use ɾ (U+027E)
Plain Latin rType r (U+0072)
Alveolar lateral flapUse ɺ (U+027A)

Live Preview

ɿ in IPA context, compared with related look-alikes.

Example IPA Extensions: ɿ
Large glyph ɿ
vs look-alikes ɿ  |  ɾ  |  ɺ  |  r
With entities Hex: ɿ | Decimal: ɿ

Complete HTML Example

One page that shows reversed r with fishhook with hex, decimal, typed character, and CSS escape. Use View Output or open the live editor.

Hex + Decimal + Typed + CSS

Four ways to produce ɿ, plus a comparison with fishhook r.

html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Reversed R with Fishhook (ɿ)</title>
  <style>
    #point::after {
      content: "\027F";
    }
  </style>
</head>
<body>
  <p>Using Hex Code: &#x027F;</p>
  <p>Using HTML Code: &#639;</p>
  <p id="point">Using CSS Entity: </p>
  <p>Typed directly: ɿ</p>
  <p>Compared: ɿ vs ɾ</p>
</body>
</html>
Try It Yourself

How It Works

1. Hex / decimal: U+027F → &#x027F; or &#639;. The browser turns either into ɿ.

2. Typed: in a UTF-8 document you can paste ɿ directly — same glyph, no entity.

3. CSS: use \027F in content (not an HTML entity). #point::after appends that ɿ after the paragraph text.

4. Compared: ɾ is r with fishhook (alveolar tap) — see r with fishhook. Do not swap them.

Pitfalls & Tips

Common mistakes when working with reversed r with fishhook.

Named?

No named entity

HTML5 does not define a name for ɿ. Use &#x027F; or &#639;.

Slug

Not an uppercase J

The path /uppercase-j-reverse-fishhook is a legacy slug. The glyph is lowercase IPA ɿ (U+027F).

ɾ

Not r with fishhook

U+027E (ɾ) is the alveolar tap/flap. See r with fishhook.

Fonts

Need IPA font coverage

Some fonts omit U+027F. Prefer fonts that cover IPA Extensions (U+0250–U+02AF), such as Noto Sans or Charis SIL.

CSS vs HTML

Do not mix escapes

\027F belongs in CSS strings. &#x027F; / &#639; belong in HTML.

Plain r

Not a substitute for plain r

Do not use ɿ for ordinary spelling of r. Reserve it for phonetic transcription.

Browser Support

Reversed r with fishhook (U+027F) and its entity forms (&#x027F;, &#639;, CSS \\027F) are supported in all mainstream browsers when the page is UTF-8 and the font covers IPA Extensions.

✓ Universal support

Reversed R with Fishhook (&#x027F;)

Encode with hex, decimal, CSS escape, or type the character — same Unicode 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+027F / entities Full support

Bottom line: Prefer &#x027F; in HTML text. Use &#639; as an equivalent, and \\027F only inside CSS content. Glyph display depends on IPA font coverage.

Key Takeaways

  • Unicode: this letter is U+027F (decimal 639) — glyph ɿ.
  • HTML: use &#x027F; / &#639; — no named entity.
  • CSS: use \027F inside content for generated text.
  • Watch out: ɿ ≠ ɾ ≠ plain r · URL slug ≠ uppercase J.

One line: U+027F → &#x027F; / &#639; / CSS \027F (no named entity).

Frequently Asked Questions

Use &#x027F; (hex), &#639; (decimal), or the CSS escape \027F in content. You can also type ɿ directly in UTF-8 HTML. There is no named HTML entity for U+027F.
U+027F (LATIN SMALL LETTER REVERSED R WITH FISHHOOK). Hex 027F, decimal 639. It belongs to IPA Extensions (U+0250–U+02AF).
No. HTML5 does not define a named entity for this character. Use &#x027F; or &#639; instead.
No. Despite the legacy URL /html/entity/uppercase-j-reverse-fishhook, the character is lowercase IPA reversed r with fishhook (U+027F), not a capital J.
U+027F (ɿ) is reversed r with fishhook. U+027E (ɾ) is r with fishhook — the IPA alveolar tap/flap. They look similar in some fonts but are different code points.
HTML entities (&#639; or &#x027F;) go in markup. The CSS escape \027F is used in stylesheets (usually in the content property of ::before/::after). Both render ɿ.

Did you know?

Reversed r with fishhook is Unicode U+027F (decimal 639) — glyph ɿ (LATIN SMALL LETTER REVERSED R WITH FISHHOOK) in IPA Extensions. HTML5 has no named entity — use &#x027F; / &#639;. Do not confuse it with r with fishhook (U+027E). The URL slug is legacy — this is not an uppercase J.

Next: Uppercase K

Learn the HTML entity for plain capital K — 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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