Meaning & use
trillion
Last updated
The number equal to one thousand billion, written as 1,000,000,000,000.
See it in a sentence
The national debt has grown to several trillion dollars.
Astronomers estimate the galaxy contains trillions of stars.
A note on using this word
In the short-scale system used in the US and UK today, a trillion is 10^12; some countries historically used the word for a much larger number, which can cause confusion in translation.
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