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O mark
Circular symbol used in Japan / From Wikipedia, the free encyclopedia
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◯ redirects here. For similar symbols, see circle symbol (disambiguation)
O mark is the name of the circle symbol "◯". It is often used in East Asia to express affirmation. Its use is similar to that of the checkmark ("✓") in the Western world. Its opposite is the X mark ("✗" or "×").
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The symbol has a variety of names and meanings in various cultures. In Japanese it is called marujirushi (丸印) or maru (丸) and expresses affirmation. In Korean it is called gongpyo (공표; 空標; lit. ball mark) and expresses affirmation.