∪
Union Symbol (∪)
Copy and paste the union symbol ∪ — click the button or any variant below
Union Symbol Copy and Paste
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∪
Union
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⋃
N-ary Union
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⊎
Multiset Union
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About the Union Symbol
Last reviewed on October 1, 2026
The union symbol ∪ combines two sets: A ∪ B contains every element that is in A, in B, or in both.
Where ∪ is used
- Set theory and Venn diagrams (A ∪ B).
- Probability of either event, P(A ∪ B).
- Combining intervals, e.g. (−∞, 0) ∪ (0, ∞).
Related characters
Browse the full Mathematical Symbols list, or pick a sibling character from the grid below.
How to Type the Union Symbol
Windows: Type 222A then press Alt+X in Word to convert it into ∪
Mac: Press Ctrl+Cmd+Space to open the Character Viewer and search for “union”
Microsoft Word: Type 222A then press Alt+X to convert it into ∪
LaTeX: \cup in math mode
HTML: Use the entity ∪ or the numeric code ∪
Phone & tablet: Copying ∪ from this page is fastest — see our mobile typing guide for keyboard tricks
Union Symbol Code for HTML, CSS & JavaScript
HTML: ∪
CSS: content: '\222A';
JavaScript: '\u222A'
Unicode: U+222A
Frequently Asked Questions
How do I type the union symbol ∪ on Windows?
Type 222A then press Alt+X in Word to convert it into ∪. You can also copy ∪ straight from this page — it pastes into any app.
How do I type ∪ on a Mac?
Press Ctrl+Cmd+Space to open the Character Viewer and search for “union”.
What is the Unicode and HTML code for the union symbol?
The union symbol is Unicode code point U+222A. In HTML, use ∪ or the numeric reference ∪.
How do I write ∪ in LaTeX?
Use \cup in math mode, for example $\cup$.