Intersection Symbol
The ∩ symbol represents intersection—items shared by two sets or overlapping conditions.
U+2229
∩ (Unicode U+2229) is commonly known as the intersection symbol. It’s used to show what two collections have in common. You can copy it directly or use standard code escapes for web and programming.
Intersection Symbol Meaning
The symbol ∩, named “INTERSECTION” in Unicode, is used to indicate overlap between two sets or conditions. In math, A ∩ B denotes the elements that belong to both A and B. In logic and related notation, it can represent a combined requirement—often read as “and” when describing overlapping criteria. In diagrams and set-based explanations, ∩ highlights the shared region of two circles in a Venn diagram. Because it’s compact and visually clear, ∩ is also used in technical writing to label common parts, shared resources, or overlapping selections.
Common uses
- •Writing set notation for “elements in both sets” (A ∩ B).
- •Labeling shared regions in Venn diagrams or overlap diagrams.
- •Expressing combined conditions where both requirements must be satisfied.
- •Denoting overlapping selections in filters (e.g., items matching multiple categories).
- •Formally describing common features shared by two groups in technical documents.
Examples
∩ Intersection Symbol (U+2229)
- ∩A ∩ B = {2, 3}.
- ∩The shared languages are languages in set X ∩ set Y.
- ∩Valid entries must satisfy condition 1 ∩ condition 2.
- ∩Customers in segment A ∩ segment B receive the same offer.
- ∩The overlap region corresponds to S ∩ T.
Variations
Ready to copy
Technical codes
| Unicode | U+2229 | |
| HTML Entity | ∩ | |
| HTML Code | ∩ | |
| CSS | \2229 | |
| Alt Code | Alt + 8745 | |
| Decimal | 8745 |
How to type Intersection Symbol (∩)
On Windows
Hold Alt and type 8745 on the numeric keypad. In Word, type 2229 then press Alt + X.
On Mac
Switch to the Unicode Hex Input keyboard, then hold Option and type 2229. Or press Control + Command + Space and search.
On Linux
Press Control + Shift + U, type 2229, then press Enter or Space.
Anywhere
Copy ∩ with the button above and paste it wherever you need it — this works on every device and in every app, with no keyboard shortcut to remember.
FAQ
What does ∩ mean?
∩ is the intersection symbol. It typically means the shared elements of two sets, written as A ∩ B.
What is the Unicode code point for ∩?
The Unicode code point for ∩ is U+2229.
How can I copy ∩ into HTML?
Use the HTML entity ∩.
How can I use ∩ in CSS or JavaScript?
In CSS you can use \\2229. In JavaScript you can use \\u{2229}.