First Known Use: 1834
Dictionary
billion
noun bil·lion \ˈbi(l)-yən\
: the number 1,000,000,000 : one thousand million
: a very large amount or number
: the number 1,000,000,000,000
Full Definition of BILLION
1
— see number table
2
: a very large number
— billion adjective
— bil·lionth \-yən(t)th\ adjective or noun
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Origin of BILLION
French, from bi- + -illion (as in million)
BILLIONTH Defined for Kids
billion
noun bil·lion \ˈbil-yən\
Definition of BILLION for Kids
1
: a thousand millions
2
: a very large number <billions of stars>
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