Definition Definition

o - Meaning and Examples

Meaning of 'o' (Webster Dictionary)

1 . 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.
2 . O [ a.]
- One.
3 . O [ 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.
4 . O [ n.]
- The letter O, or its sound.
- Something shaped like the letter O; a circle or oval.
- A cipher; zero.

Meaning of 'o' (Princeton's WordNet)

1 . o [ n]
Meaning (1):
- the blood group whose red cells carry neither the A nor B antigens
Example in sentence:
  • people with type O blood are universal donors