Synonyms and Antonyms for O

1. O (n.)

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

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2. o (n.)

the 15th letter of the Roman alphabet

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3. O (n.)

the 15th letter of the Roman alphabet

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4. O (n.)

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

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5. O. Henry (n.)

United States writer of short stories whose pen name was O. Henry (1862-1910)

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6. Jell-O (n.)

fruit-flavored dessert (trade mark Jell-O) made from a commercially prepared gelatin powder

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7. jack-o'-lantern (n.)

a pale light sometimes seen at night over marshy ground

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8. jack-o'-lantern (n.)

lantern carved from a pumpkin

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9. will-o'-the-wisp (n.)

a pale light sometimes seen at night over marshy ground

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10. cat-o'-nine-tails (n.)

a whip with nine knotted cords

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