Definitions for o

This page provides all possible meanings and translations of the word o

Princeton's WordNetRate this definition:(0.00 / 0 votes)

  1. oxygen, O, atomic number 8(noun)

    a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust

  2. O, o(noun)

    the 15th letter of the Roman alphabet

  3. O, type O, group O(noun)

    the blood group whose red cells carry neither the A nor B antigens

    "people with type O blood are universal donors"

WiktionaryRate this definition:(0.00 / 0 votes)

  1. o(Noun)

    A zero .

  2. o(Interjection)

    The English vocative particle, used before a pronoun or the name of a person or persons to mark direct address.

  3. o(Interjection)


  4. o(Interjection)

    Object, see SVO

  5. o


  6. O(Noun)

    A blood type that lacks A or B antigens and may only receive transfusions of similar type O blood, but may donate to all (neglecting Rh factor). Synonym: universal donor.

  7. O(Noun)

    American Library Association

  8. O

    Someone associated with Leyton Orient Football Club, as a player, coach, supporter etc.

  9. O(Prefix)

    descendant of; used to form Irish patronymic surnames.

Webster DictionaryRate this definition:(0.00 / 0 votes)

  1. O

    o, the fifteenth letter of the English alphabet, derives its form, value, and name from the Greek O, through the Latin. The letter came into the Greek from the Ph/nician, which possibly derived it ultimately from the Egyptian. Etymologically, the letter o is most closely related to a, e, and u; as in E. bone, AS. ban; E. stone, AS. stan; E. broke, AS. brecan to break; E. bore, AS. beran to bear; E. dove, AS. d/fe; E. toft, tuft; tone, tune; number, F. nombre

  2. O

    among the ancients, O was a mark of triple time, from the notion that the ternary, or number 3, is the most perfect of numbers, and properly expressed by a circle, the most perfect figure

  3. O(noun)

    the letter O, or its sound

  4. O(noun)

    something shaped like the letter O; a circle or oval

  5. O(noun)

    a cipher; zero

  6. O(adj)


  7. O

    an exclamation used in calling or directly addressing a person or personified object; also, as an emotional or impassioned exclamation expressing pain, grief, surprise, desire, fear, etc

  8. Origin: [See One.]

FreebaseRate this definition:(0.00 / 0 votes)

  1. O

    O is the fifteenth letter and a vowel in the ISO basic Latin alphabet.

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