American Heritage® Dictionary of the English Language, Fourth Edition
- n. The cardinal number equal to 1012.
- n. Chiefly British The cardinal number equal to 1018.
Century Dictionary and Cyclopedia
- n. In the original and most systematic sense, sometimes called English numeration, though of Italian origin, the third power of a million
- n. a million of millions of millions; in the French numeration, usual in the United States, a thousand billions, or a million millions. In Italian arithmetics from the last quarter of the fifteenth century the words bilione or duilione, trilione, quadrilione or quattrilione, quintilione, cinquilione, or quinquilione, seilione or sestilione, settilione, ottilione, novilione, and decilione occur as common abbreviations of due volte millioni, tre volte millioni, etc. In other countries these words came into use much later, although one French writer, Nicolas Chuquet, mentions them as early as 1484, in a book not printed until 1881. The Italians had, besides, another system of numeration, proceeding by powers of a thousand. The French, who, like other northern peoples, took most if not all their knowledge of modern or Arabic arithmetic from the Italians, early confounded the two systems of Italian numeration, counting in powers of a thousand, but adopting the names which properly belong to powers of a million. The result has been that the names billion, trillion, etc., have, owing to their ambiguity, been almost discarded. A trilliar, or a thousand millions, is called a milliard by bankers, and when a name for a thousand milliards comes to be wanted it is probable that some other augmentative form will be borrowed from the Italian or Spanish. Compare
- n. A million million: 1 followed by twelve zeros, 1012.
- n. A million million million: 1 followed by eighteen zeros, 1018.
GNU Webster's 1913
- n. According to the French notation, which is used upon the Continent generally and in the United States, the number expressed by a unit with twelve ciphers annexed; a million millions; according to the English notation, the number produced by involving a million to the third power, or the number represented by a unit with eighteen ciphers annexed. See the Note under numeration.
- adj. one quintillion in Great Britain
- n. the number that is represented as a one followed by 18 zeros
- n. the number that is represented as a one followed by 12 zeros
- n. a very large indefinite number (usually hyperbole)
- adj. one million million in the United States
- From French trillion. (Wiktionary)
- French : tri-, third power (from Latin tri-, tri-) + (m)illion, million (from Old French milion; see million). (American Heritage® Dictionary of the English Language, Fourth Edition)
“If the risk of sea level rise, species extinctions, disrupted agriculture, new infrastructure investments required to adapt to catastrophic climate change, etc can be valued at $20 trillion in "net present value" (NPV ... value today, in today's dollars), then an investment of $trillion or $4 trillion to obviate that risk is a well-spent insurance policy.”
“The term trillion makes all of this somewhat hard to grasp.”
“I would have not known this, but I quickly learned it by looking up the term trillion in Wolfram|Alpha.”
“I've read that mathematicians do not even use the term trillion!”
“At that point, the word trillion was rarely mentioned in the news and resided more in the imagination of children, alongside zillions and gazillions, as an expression of something on an enormous scale.”
“We all went to school and we learned a trillion is a million million or a thousand billion.”
“You don't know what a trillion is and neither did 1.”
“Once a representation of something beyond our comprehension, the word trillion - 1,000,000,000,000 - has now sealed its place in common parlance.”
“The first time someone hears the word trillion, they might not know the number of zeros but they know it's a big number.”
“Now that the word "trillion" is used in everyday conversation regarding Obama, it is sooooo much easier to drop a few billion here and there without anyone questioning it.”
These user-created lists contain the word ‘trillion’.
words for shape
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These come from gamma meditation ,I think.
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Idea from Will Shortz's NPR puzzle feature. Two words that share a common letter (end of first word and start of second word) and forming a larger word, e.g., mill and lion = mil-l-ion. Variants ...
A list of some words for numbers (mostly cardinal numbers, but a few other important ones that have short descriptions).
Names of numbers.
Gem cuts, old and new.
Looking for tweets for trillion.