🅾️Button 0 symbol

🅾️ O button (blood type)

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🅾️ Emoji meaning

Universal donor, compatible, option, zero, minimalism.

Table of Contents

  1.  Meaning
  2.  Confused With
  3.  Emoji History
  4.  Similar Emojis
  5.  Platforms
  6.  Emoji Details

🅾️ Meaning

I'm on a blood type diet! People with blood group 0 are so-called universal donors. This blood group is compatible with all others. From a global perspective, blood group 0 is the most common.

Learn more about the meaning

Commonly confused with

Color Variant

O button (blood type)
↔
B button (blood type)

Squared B vs squared O; both used for blood types or letter grades.

O button (blood type)
↔
AB button (blood type)

Squared O vs AB button; both blood-group icons, combinations can be confusing.

Emoji History

Development of the emoji in the Unicode lexicon

First included

The emoji “O button (blood type)” was approved as part of Unicode 6.0 in 2010 and added to Emoji 0.6.

In the release of Emoji 16.0 and Unicode 16.0 in 2024 there was 1 change.

Keywords changed

Keywords added

+ blood + button + type

Keywords removed

- blood type - O button (blood type)

In the release of Emoji 14.0 and Unicode 14.0 in 2021 there was 1 change.

Keywords changed

Keywords added

+ O

Keywords removed

- o

In the release of Emoji 5.0 and Unicode 10.0 in 2017 there was 1 change.

Keywords changed

Keywords added

+ O button (blood type)

In the release of Emoji 3.0 and Unicode 9.0 in 2016 there were 2 changes.

Emoji title renamed

Emoji title before

o button

Emoji title after

O button (blood type)

Keywords changed

Keywords added

+ blood type + o

Similar emojis from "Alphanumeric"

Select Emoji
Alphanumeric
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