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𝕺

Mathematical Bold Fraktur Capital O Symbol

𝕺 is the Mathematical Bold Fraktur Capital O character used in math and typographic symbol styling.

U+1D57A

𝕺 (MATHEMATICAL BOLD FRAKTUR CAPITAL O) is a Unicode math-style letterform. It’s commonly used when you want a bold, blackletter β€œO” look that still behaves like a single character in text.

Mathematical Bold Fraktur Capital O Symbol Meaning

𝕺 is a Unicode character identified as MATHEMATICAL BOLD FRAKTUR CAPITAL O. It belongs to the β€œMath” category and is typically used as a styled capital O in mathematical expressions or typographic contexts. Because it’s a distinct Unicode code point (U+1D57A), it can be reliably copied into documents, design tools, and code. In practice, it’s used to give a Fraktur-like, bold mathematical appearanceβ€”often in formula labels, variable names, or decorative headings where a distinctive capital O is needed.

Common uses

  • β€’Labeling mathematical variables or constants with a Fraktur style capital O
  • β€’Creating consistent typography in equation screenshots and math documentation
  • β€’Using a distinctive letterform in poster or slide headings that use math fonts
  • β€’Mocking up formula-based UI text (e.g., β€œO” terms) with a styled character
  • β€’Designing symbol sets where each character is a specific Unicode code point

Examples

𝕺 Mathematical Bold Fraktur Capital O

  • 𝕺Let 𝕺 be a constant in the expression.
  • 𝕺The value of 𝕺 determines the output.
  • 𝕺We denote the operator by 𝕺.
  • 𝕺Form the vector 𝕺 and compute its norm.
  • 𝕺Choose the matrix associated with 𝕺.

Variations

Ready to copy

Technical codes

UnicodeU+1D57A
HTML Entity𝕺
HTML Code𝕺
CSS\1D57A
Decimal120186

How to type Mathematical Bold Fraktur Capital O Symbol (𝕺)

On Windows

In Word, type 1D57A then press Alt + X. Or open the emoji picker with Windows key + period.

On Mac

Press Control + Command + Space to open Character Viewer and search for the character.

On Linux

Press Control + Shift + U, type 1d57a, then press Enter or Space.

Anywhere

Copy 𝕺 with the button above and paste it wherever you need it β€” this works on every device and in every app, with no keyboard shortcut to remember.

FAQ

What does the Mathematical Bold Fraktur Capital O symbol mean?

𝕺 is a Unicode character identified as MATHEMATICAL BOLD FRAKTUR CAPITAL O. It belongs to the β€œMath” category and is typically used as a styled capital O in mathematical expressions or typographic contexts. Because it’s a distinct Unicode code point (U+1D57A), it can be reliably copied into documents, design tools, and code. In practice, it’s used to give a Fraktur-like, bold mathematical appearanceβ€”often in formula labels, variable names, or decorative headings where a distinctive capital O is needed.

What is the Unicode code point for 𝕺?

𝕺 is U+1D57A.

How do I include 𝕺 in HTML?

Use the HTML entity 𝕺 or paste the character directly into your markup.

What is the CSS escape for 𝕺?

CSS escape: \\1D57A.

How do I use 𝕺 in JavaScript?

JavaScript escape: \\u{1D57A}.