Definition of O
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() 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.
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(a.) One.
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(interj.) 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.
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(n.) The letter O, or its sound.
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(n.) Something shaped like the letter O; a circle or oval.
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(n.) A cipher; zero.
Antonyms of O
No Antonyms Found.