What ⩂ means
It marks a union operation, with the bar built into the symbol.
Unicode's math data labels it ncup and classifies it as a binary operator—a sign placed between two operands, the values or expressions it connects.
How is ⩂ different from ?
⩂ has an overbar; is the unbarred union sign.
The related symbol uses an overbar with intersection instead. The line belongs to the selected character, not a separate mark.
Questions people ask
1Why does ⩂ show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type or find ⩂
- Search it as
- ncup · barred union symbol
- Shows up in
- Anything that takes text · its shape is whatever your font draws
⩂\2A42⩂ as a named reference for ⩂.Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.


