Math symbol reference

Subscript O

Represents subscript o as a standalone Unicode character for compact linear notation.

UnicodeU+2092
LaTeX_o
HTML entityₒ
HTML decimalₒ
MathML<mi>ₒ</mi>

Semantic identity and intent

Semantic type

script-identifier

A Unicode presentation character for a scripted letter or identifier.

Primary search task

copy the scripted identifier and decide whether structured notation is safer

Superscripts and SubscriptsMathematical Alphanumeric Symbols

MathML token

<mi>

Use ₒ as an identifier or variable name, and define it before the first calculation. In MathML this role normally uses the mi token rather than an operator token.

Characters to distinguish

  • ² — Superscript Two
  • ₁ — Subscript One
  • ⁰ — Superscript Zero

Use ₒ in the right format

Meaning and usage

Represents subscript o as a standalone Unicode character for compact linear notation.

Use ₒ only when a plain-text destination cannot render structured subscripts or superscripts; use LaTeX _o for full equations.

Pronunciation: subscript o

Formula examples

ₒ is used in a context where represents subscript o as a standalone Unicode character for compact linear notation.

How to type Subscript O

Windows
Use Character Map or enter U+2092 in a Unicode-aware application.
macOS
Open Character Viewer with Control–Command–Space and search by the symbol name.
Microsoft Word
In an equation, type _o and press Space when Word supports the command.
iPhone and iPad
Copy and paste ₒ, or use a math/LaTeX app. The standard iOS keyboard may not expose every mathematical symbol.
Android
Copy and paste ₒ, or use a math keyboard or LaTeX editor. Keyboard layouts vary by device and app.
Google Docs
For plain text, paste ₒ or use Insert → Special characters. For structured math, use the equation editor and verify _o.
Excel
Paste ₒ into a cell or use Insert → Symbol when available. Ordinary cells preserve the character but do not interpret LaTeX commands.

Common mistakes

  • Do not substitute a visually similar Latin or differently styled character for ₒ; case and mathematical alphabet style can identify different quantities.
  • For plain text, copy ₒ as U+2092; for structured equations, use _o in math mode. A look-alike glyph or image can break search, accessibility, or parsing when the intended character is Subscript O.

When to use ₒ

  • Use ₒ in plain text when a Unicode character is appropriate and the destination preserves U+2092.
  • Use _o in an equation editor when mathematical spacing or structure matters.
  • Define the local meaning when Subscript O is used in super sub, math alphanumeric with a field-specific convention.

Look-alikes and related characters

  • ² — Superscript Two
  • ₁ — Subscript One
  • ⁰ — Superscript Zero

Font and compatibility notes

Font coverage varies; verify the code point and destination rendering before publication.

Continue the workflow

From Subscript O to a finished equation

  1. Copy the characterUse ₒ in plain text when Unicode is accepted.
  2. Choose a structured formatUse _o for LaTeX or the MathML snippet for accessible web equations.
  3. Edit or convertOpen the value in the editor or converter without retyping it.

Review and source notes

Quality tier: catalog

Last reviewed: 2026-07-23

Review method: Catalog review of character identity and notation mappings.

Verified against: Unicode Standard, Unicode mathematical notation guidance, and established LaTeX/MathML syntax.

Reference sources

Frequently asked questions

What does the Subscript O symbol mean?

Represents subscript o as a standalone Unicode character for compact linear notation.

What is the LaTeX command for ₒ?

Use _o in a compatible math environment.

Can I copy ₒ as Unicode?

Yes. Use the copy button above to copy the Unicode character directly.

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