Alternative spelling of billy-oh.

(US, modern British & Australian, short scale) a thousand million (logic: 1,000 × 1,000^2): 1 followed by nine zeros, 10⁹; a milliard

Having more than 1,000,000,000; in the billion range. / (in the old numbering system, chiefly Britain), more than 1,000,000,000,000; in the old billion range.

Somebody whose wealth is greater than one billion (10⁹) dollars, or other currency.

The ordinal form of the number one billion.

The person or thing in the billionth position. / One of a billion equal parts of a whole.

A billion times so

In a billionfold way; by a billion degrees; on a scale of a billion

plural of billion

plural of billionaire