Windows
2 options- In Word / Outlook: type 229F then press Alt + X.
- Anywhere: press Win + . to open the emoji & symbol picker, then search.
Squared Minus Symbol
A symbol from the Math Symbols collection. Click the symbol or the button below to copy.
- Symbol
- ⊟
- Unicode
- U+229F
- HTML entity
- ⊟
- Category
- Math Symbols
Export
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Background
Previewtransparent background
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80 of 96 in the math symbols collection
About the squared minus symbol
The squared minus symbol ⊟ combines a minus sign inside a square outline, representing a binary operation in mathematics that subtracts one element from another within a defined set or structure. It is occasionally used in abstract algebra or logic contexts, particularly in textbooks and papers that discuss group operations or set-theoretic differences.
This character appears mainly in mathematical typesetting, such as in LaTeX documents or online equation editors, where it serves as a compact notation for subtraction-like operations that are distinct from the ordinary minus sign. It is not commonly encountered outside specialized mathematical or technical writing.
How to type Squared Minus
Native keyboard shortcuts for each operating system — derived from the codepoint, so the steps below are always accurate.
macOS
2 options- Enable “Unicode Hex Input” in System Settings → Keyboard, then hold Option and type 229F.
- Or: Control + Command + Space opens the Character Viewer — search by name.
Linux
1 step- Press Ctrl + Shift + U, type 229F, then press Enter or Space.
Copy in every format
Every form of this character — for HTML, CSS, JavaScript, URLs and more. Click any value to copy.
Related math symbols
Other math symbols you can copy and paste — explore similar Unicode characters from the same family.
- +Plus SignCopy the plus sign symbol→
- −Minus SignCopy the minus sign symbol→
- ×Multiplication SignCopy the multiplication sign symbol→
- ÷Division SignCopy the division sign symbol→
- ±Plus-Minus SignCopy the plus-minus sign symbol→
- ∓Minus-Or-Plus SignCopy the minus-or-plus sign symbol→
- =Equals SignCopy the equals sign symbol→
- ≠Not Equal ToCopy the not equal to symbol→
- ≈Almost Equal ToCopy the almost equal to symbol→
- ≡Identical ToCopy the identical to symbol→
- ≤Less-Than Or Equal ToCopy the less-than or equal to symbol→
- ≥Greater-Than Or Equal ToCopy the greater-than or equal to symbol→
Explore related collections
Browse other symbol families that pair well with math symbols.