O, o ( O's, o's plural )
1 n-var O is the fifteenth letter of the English alphabet.
2 num O is used to mean zero, for example when you are telling someone a telephone number, or mentioning a year such as 1908.
3 exclam O is used in exclamations, especially when you are expressing strong feelings.
LITERARY, feelings O how mistaken you are!..., O God, I want to go home.
Translation English Cobuild Collins Dictionary
mas o menos, aproximadamente, sobre, acerca
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