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  1. O - Wikipedia

    O, or o, is the fifteenth letter and the fourth vowel letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide.

  2. O definition and meaning | Collins English Dictionary

    O is used to mean zero, for example when you are telling someone a phone number, or mentioning a year such as 1908.

  3. O | History, Etymology, & Pronunciation | Britannica

    O, the fourth vowel of the modern alphabet, corresponding to the Semitic ayin, which represented a breathing and not a vowel. The Semitic form may have derived from an earlier sign …

  4. O Definition & Meaning | Dictionary.com

    O definition: the fifteenth letter of the English alphabet, a vowel. See examples of O used in a sentence.

  5. O noun - Definition, pictures, pronunciation and usage notes

    Definition of O noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  6. o - Wiktionary, the free dictionary

    The name of the Latin scriptletter O/o. A zero(used in reading out numbers). It is currently two-o-five in the afternoon (2:05 PM). The first permanent English settlement in America was in …

  7. O - definition of O by The Free Dictionary

    O, o (oʊ) n., pl. O's Os, o's os oes. 1. the 15th letter of the English alphabet, a vowel. 2. any spoken sound represented by this letter.

  8. O | meaning of O in Longman Dictionary of Contemporary English …

    O meaning, definition, what is O: the 15th letter of the English alphabet...: Learn more.

  9. O - Definition, Meaning & Synonyms | Vocabulary.com

    Whether you’re a teacher or a learner, Vocabulary.com can put you or your class on the path to systematic vocabulary improvement.

  10. O' Definition & Meaning - Merriam-Webster

    The meaning of O' is on. How to use o' in a sentence.