o
/oʊ/
NOUN
1. Zero or the number 0
The spoken name of the digit 0 when reading numbers or representing a numerical value of nothing.
1.1. Numbers and numerical values
Used informally when pronouncing the digit zero, especially in telephone numbers, codes, scores, and other numerical sequences.
Synonyms
Examples
- The final score was three to o.
- He read the code aloud, pronouncing the digit 0 as o.
Related Words
- digit
- number
- numeral
- integer
- numerical value
INTERJECTION
2. An exclamation of surprise or realization
An interjection used to express surprise, wonder, recognition, understanding, or a sudden realization.
2.1. Surprise and astonishment
Used as an exclamation when something unexpected or remarkable causes a person to react with surprise or amazement.
Synonyms
- oh
- ah
Examples
- O, I didn't realize you were waiting for me outside.
- The breathtaking view from the mountaintop elicited an audible o from the hikers.
- The surprise left her speechless, and all she could manage was an astonished o.
Related Words
- astonishment
- surprise
- wonder
- amazement
- exclamation
2.2. Understanding and recognition
Used to indicate that a speaker has understood something, recognized a fact, or suddenly realized what another person means.
Synonyms
- oh
- ah
- aha
Examples
- O, I see what you mean now—thanks for explaining!
- O, now I understand why the instructions were different.
Related Words
- realization
- comprehension
- recognition
- insight
- understanding