Union With Overbar Symbol
⩂ is the union symbol with an overbar, used in math and notation to style set unions.
U+2A42
⩂ is a math symbol often used to represent a union operation with an overbar. It’s useful when you need a specific typographic style in set or logic notation. On this page you can copy it and find reliable code-point details.
Union With Overbar Symbol Meaning
⩂ (Unicode name: “UNION WITH OVERBAR”, U+2A42) is a mathematical symbol that combines a union mark with an overbar. In practice, it’s used to indicate a union operation while applying a distinct visual style—often to match a particular convention in textbooks, papers, or custom notation systems. Because overbars frequently appear in formal mathematics to distinguish variants or derived operations, ⩂ is typically chosen when a plain union symbol is not sufficient. Use it wherever your document or design needs exactly this overlined union glyph rather than a similar-looking character.
Common uses
- •Representing an overlined union in mathematical set notation
- •Labeling operations in diagrams, proofs, or algorithms that use styled unions
- •Typesetting in notes or educational materials that follow a specific notation convention
- •Creating consistent typography in math-heavy UI or dashboards
- •Using a precise glyph in scientific writing where symbol variants matter
Examples
⩂ Union With Overbar Symbol
- ⩂A ⩂ B
- ⩂X ⩂ Y
- ⩂U ⩂ V
- ⩂S ⩂ T
- ⩂Ω ⩂ Λ
Variations
Ready to copy
Technical codes
| Unicode | U+2A42 | |
| HTML Entity | ⩂ | |
| HTML Code | ⩂ | |
| CSS | \2A42 | |
| Alt Code | Alt + 10818 | |
| Decimal | 10818 |
How to type Union With Overbar Symbol (⩂)
On Windows
Hold Alt and type 10818 on the numeric keypad. In Word, type 2A42 then press Alt + X.
On Mac
Switch to the Unicode Hex Input keyboard, then hold Option and type 2A42. Or press Control + Command + Space and search.
On Linux
Press Control + Shift + U, type 2a42, 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 the Union With Overbar symbol mean?
⩂ (Unicode name: “UNION WITH OVERBAR”, U+2A42) is a mathematical symbol that combines a union mark with an overbar. In practice, it’s used to indicate a union operation while applying a distinct visual style—often to match a particular convention in textbooks, papers, or custom notation systems. Because overbars frequently appear in formal mathematics to distinguish variants or derived operations, ⩂ is typically chosen when a plain union symbol is not sufficient. Use it wherever your document or design needs exactly this overlined union glyph rather than a similar-looking character.
What is the Unicode code point for ⩂?
⩂ is U+2A42.
How can I copy ⩂ into HTML?
You can use the HTML entity: ⩂.
What CSS escape can I use for ⩂?
Use: \\2A42.
Is ⩂ the same as a normal union symbol?
Not exactly. ⩂ is a union with an overbar, which gives it a distinct typographic meaning compared with a plain union glyph.