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English definition of “O”

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O

noun  // us  

O noun (LETTER)

[C] ( plural O’s, Os, o’s or os) ( also o) the 15th letter of the English alphabet

O noun (ZERO)

[U] (spelled the way it is often spoken) zero

O

exclamation  // old use us  

O exclamation (EMOTION)

used when addressing someone or something, or when expressing strong emotion: "O! Canada" is the Canadian national anthem.
Translations of “O”
in Spanish O, o…
in French ô!…
in German oh!…
in Chinese (Traditional) 字母, 英語字母表的第15個字母…
in Chinese (Simplified) 字母, 英语字母表的第15个字母…
(Definition of O from the Cambridge Academic Content Dictionary © Cambridge University Press)
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