from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The cardinal number equal to 109.
- n. Chiefly British The cardinal number equal to 1012.
- n. An indefinitely large number.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A milliard, a thousand million: 1 followed by nine zeros, 109.
- n. A million million: a 1 followed by twelve zeros, 1012.
- n. A very large number.
from the GNU version of the Collaborative International Dictionary of English
- n. 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.
from The Century Dictionary and Cyclopedia
- n. In Great Britain, a million of millions; as many millions as there are units in a million (1,000,000,000,000).
- n. In France and the United States, a thousand millions (1,000,000,000).
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the number that is represented as a one followed by 9 zeros
- adj. denoting a quantity consisting of one million million items or units in Great Britain
- n. a very large indefinite number (usually hyperbole)
- adj. denoting a quantity consisting of one thousand million items or units in the United States
- n. 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
French, a million million : blend of bi-, second power; see bi-1 and million.(American Heritage® Dictionary of the English Language, Fourth Edition)
From French billion (Wiktionary)