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Webster 1913 Edition
Billion
Bil′lion
,Noun.
According to the French and American method of numeration, a thousand millions, or 1,000,000,000; according to the English method, a million millions, or 1,000,000,000,000. See
Numeration
. Webster 1828 Edition
Billion
BILL'ION
,Noun.
A million of millions; as many millions as there are units in a million.