  # Billon vs. Billion: What's the Difference? ## Billon and Billion Definitions

#### Billon

An alloy of gold or silver with a greater proportion of another metal, such as copper, used in making coins.

#### Billion

The cardinal number equal to 109.

#### Billon

An alloy of silver with a high percentage of copper, used in making medals and tokens.

#### Billion

Chiefly British The cardinal number equal to 1012.

#### Billon

Any of several alloys of precious metals and base metals that are used (where legal) to make coins, medals etc.

#### Billion

An indefinitely large number.

#### Billon

An alloy of gold and silver with a large proportion of copper or other base metal, used in coinage.

#### Billion

A thousand million ([https://en.wikipedia.org/wiki/Long_and_short_scales#Comparison logic: 1,000 × 1,000^2]): 1 followed by nine zeros, 109; a milliard

#### Billion

A million million ([https://en.wikipedia.org/wiki/Long_and_short_scales#Comparison logic: 1,000,000^2]): a 1 followed by twelve zeros; 1012

#### Billion

An unspecified very large number.
There were billions of people at the concert.

#### Billion

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.

#### Billion

The number that is represented as a one followed by 12 zeros; in the United Kingdom the usage followed in the United States is frequently seen

#### Billion

The number that is represented as a one followed by 9 zeros

#### Billion

Denoting a quantity consisting of one thousand million items or units in the United States

#### Billion

Denoting a quantity consisting of one million million items or units in Great Britain