[t_ɹ_ˈɪ_l_iə_n], [tɹˈɪli͡ən], [tɹˈɪliən]
Definitions of trillion

( U. S.) one million million; ( Britain) one quintillion

( in the United States and France) the number that is represented as a one followed by 12 zeros; " in England they call a trillion a billion"

( in Britain and Germany) the number that is represented as a one followed by 18 zeros; " in England they call a quintillion a trillion"

the number that is represented as a one followed by 12 zeros; " in England they call a trillion a billion"

the number that is represented as a one followed by 18 zeros; " in England they call a quintillion a trillion"

one million million in the United States

one quintillion in Great Britain

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.

In the French system of numbering, followed in the United States, a unit followed by twelve ciphers: in the English system, a unit followed by eighteen ciphers.

Trillionth.

A million raised to the second power ( 1, 000, 000, 000, 000), or, in England, multiplied twice by itself ( 1, 000, 000, 000, 000, 000, 000), corresponding to our quintillion.

A million raised to the third power; a unit and eighteen ciphers.

A cardinal number; in the French ( also U. S.) system of numeration, a million millions; in the English system, the third power of a million.

The product of a million involved to the third power, and expressed by a unit with 18 ciphers annexed.

In the Eng. system of notation, a number represented by the third power of a million; the figure 1, followed by eighteen ciphers; in the F. and It. systems, the figure 1, followed by twelve ciphers.
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Usage examples for trillion

Among the trillion mysteries, breathing every second the inexplicable air, who may venture to ask that the fathomless nature of a master be instantly grasped? – Autobiography of a YOGI by Paramhansa Yogananda

We traverse a few more trillion miles in our rapid course, and it shines out like a fine star of the first magnitude. – Astronomy for Amateurs by Camille Flammarion

And so, my budget sets aside almost a trillion dollars over 10 years for additional needs. – Complete State of the Union Addresses from 1790 to the Present by Various

" But we are of a different universe, on a different scale from yours, a trillion light years away in space, eons distant in time. – Raiders of the Universes by Donald Wandrei

The only alternative being offered to this economic program is a return to the policies that gave us a trillion dollar debt, runaway inflation, runaway interest rates and unemployment. – State of the Union Addresses of Ronald Reagan by Ronald Reagan

We cut over a quarter of a trillion dollars in spending, more than 300 domestic programs, more than 100, 000 positions from the Federal bureaucracy in the last two years alone. – Complete State of the Union Addresses from 1790 to the Present by Various

The reason why I assumed that there must be something wrong with the figures in the chronicle is that we can confidently say that Harold's army did not contain over three trillion men! – Amusements in Mathematics by Henry Ernest Dudeney

A trillion tells you nothing Comparison, everything. – All Around the Moon by Jules Verne

A trillion of cows! – A Summer in Leslie Goldthwaite's Life. by Mrs. A. D. T. Whitney

Among the trillion mysteries of the cosmos, the most phenomenal is light. – Autobiography of a YOGI by Paramhansa Yogananda

The Goal of Project Gutenberg is to Give Away 1 Trillion eBooks! – Dutch Fairy Tales for Young Folks by William Elliot Griffis

Not one of these stars is within a trillion miles of any other. – Life in a Thousand Worlds by William Shuler Harris

" Three trillion five hundred and seventy five billion four hundred and fifty seven million dollars," stammered Jack, his eyes bulging with amazement. – Jack and the Check Book by John Kendrick Bangs

I've just counted up to three trillion two hundred and thirty seven billion, nine hundred and forty eight million, seven hundred and fifteen thousand, four hundred and and now you've gone and made me miss, and I'll have to count all over again. – Puss in Boots, Jr., and the Good Gray Horse by David Cory

Every one of the thousand three hundred and sixty five inhabited worlds, a trillion and a half intelligent beings, fourteen races fifteen if you counted the Zarathustran Fuzzies, who were almost able to qualify under the talk and build a fire rule. – Ministry of Disturbance by Henry Beam Piper

Our chances of being caught by the correct star in the absolutely correct position are one in a thousand trillion but we can do it! – Dead World by Jack Douglas

They died for a dangerous dream that had only one chance in a thousand trillion to come true. – Dead World by Jack Douglas

You're being destroyed and recreated a trillion times a second." – Down and Out in the Magic Kingdom by Cory Doctorow

Oh, I'd give a million dollars, a trillion dollars, she amended generously, to hear that roar. – Nan Sherwood on the Mexican Border by Annie Roe Carr