🅾️ is a square button with the letter O, originally meaning blood type O. People use it when talking about blood types or blood donation. It is also used as a stand-in for the letter O when spelling words in a stylized way.

U+1F17E U+FE0F
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I'm 🅾️ type, universal donor
N🅾️ way, that's amazing
| Name | O button (blood type) |
|---|---|
| Codepoints | U+1F17E U+FE0F |
| Category | Symbols |
| Keywords | blood, button, o, type |
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🅾️ is a square button with the letter O, originally meaning blood type O. People use it when talking about blood types or blood donation. It is also used as a stand-in for the letter O when spelling words in a stylized way.
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