en.wikipedia.org/wiki/Names_of_large_numbers

This article lists and discusses the usage and derivation of names of **large**
numbers, together .... Some names of **large** numbers, such as million, billion, and
**trillion**, have real referents in human experience, and are encountered in many ...

www.grc.nasa.gov/WWW/k-12/Numbers/Math/Mathematical_Thinking/how_big_is_a_trillion.htm

Six **trillion** seconds equals 189,276 years. Now, as an aside, along with the
nearly six **trillion** miles in the light-year, you might be interested to know that there
are ...

www.labnol.org/internet/visualize-numbers-how-big-is-trillion-dollars/7814

Mar 9, 2009 **...** Courtesy the credit crisis and **big** bailout packages, the figure “**trillion**” has
suddenly become part of our everyday conversations. One **trillion** ...

www.intmath.com/blog/mathematics/how-big-is-a-trillion-1009

Mar 5, 2008 **...** 1012In the news we hear "billion" and "**trillion**" a lot. Did you ... Not so **long** ago, a
million dollars was an unimaginably **large** amount of money.

www.pagetutor.com/trillion/index.html

A billion dollars... A hundred billion dollars... Eight hundred billion dollars... One
**TRILLION** dollars... What does that look like? I mean, these various numbers are
...

www.mathnstuff.com/math/spoken/here/2class/10/size.htm

**How Big** Is A Million, Billion, **Trillion**, . ... 2 **trillion** is 2,000,000,000,000: is 2
thousand thousand thousand thousand: = 2 x 10^{3} x 10^{3} x 10^{3} x 10^{3}: = 2 x 10^{12}:
or: is ...