Link Centre Dictionary

O

UK/oʊ/ US/ˈoː˦/ very common slang

noun

1.

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

  • “people with type O blood are universal donors”
Synonyms
2.

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

Synonyms
3.

the 15th letter of the Roman alphabet

Origin

From Middle English O, o, from Old English o, from Latin o and Ancient Greek ὦ (ô, interjection).

Phrases

  • closed o
  • open o

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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.