billion Meaning, definition in Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of "billion" - English Dictionary

See all translations

billionnoun [C]

uk   us   /ˈbɪl.jən/
B2 the number 1,000,000,000: The population of China is over a/one billion. Cosmetics is a billion-dollar industry. The government has invested billions of dollars in the project. UK old-fashioned 1,000,000,000,000 Note: This number is now called a trillion.billions of sth informal a very large number: There were billions of flies everywhere.
More examples
(Definition of billion from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of billion?
Add Cambridge dictionaries to your browser to your website

Definitions of “billion” in other dictionaries

Word of the Day
field event

a sports event in which athletes take part one after the other rather than racing or competing together

Word of the Day

Are you a glass-half-full person? (Everyday Idioms)
Are you a glass-half-full person? (Everyday Idioms)
by Kate Woodford,
July 29, 2015
A reader of this blog recently asked for a post on idioms that are used in everyday English. This seemed like a reasonable request. After all, if you are going to make the effort to learn a set of English idioms, you want those idioms to be useful. The question, then, was

Read More 

exoskeleton noun
exoskeleton noun
July 27, 2015
a robotic device which goes around the legs and part of the body of a person who cannot walk and allows them to move independently and in an upright position The device, known as an exoskeleton, is strapped to the outside of a person’s limbs and can then be controlled by them.

Read More