What does “billion” mean?
- 1
numberthe number 1,000,000,000; a thousand million
The project cost three billion dollars.
Billion at a glance
- Part of speech
- number
- CEFR level
- A2 (elementary)
- Pronunciation
- /ˈbɪljən/ · BIL-yuhn
How to use “billion” correctly
After a number, “billion” has no “s”: “two billion people”, but “billions of people”.
Common phrases with “billion”
- billions of
- a billion people
“billion” is on these word lists
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