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# trillion

«trillion» in Mova's school dictionary: **a million millions: 1,000,000,000,000, or 10 to the power…** — its meaning for a pupil, its sense in the lessons and examples, with 1 sentence of Mova's corpora that use it.

### part of speech

noun and number (a trillion, trillions; two trillion); adjective (trillionth)

### meaning for a pupil

1) A trillion is a million millions: 1,000,000,000,000, or 10 to the power of 12 — a 1 followed by 12 zeros. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/trillion/#m1)

2) (informal) «Trillions» means an enormous, uncountable number: «I've told you trillions of times!» [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/trillion/#m2)

### sense in the lessons

In maths lessons place value grows: thousand (3 zeros), million (6), billion (9), trillion (12). Trillions come up in science and money: the human body has about 30 trillion cells; there are hundreds of billions to trillions of trees on Earth; whole countries' economies are measured in trillions of dollars or pounds. Phrases: «a trillion dollars», «trillions of stars», «one in a trillion».

### examples

- A trillion is a thousand billion. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/trillion/#x1)
- The human body is made of trillions of cells. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/trillion/#x2)
- Write one trillion in digits: 1,000,000,000,000. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/trillion/#x3)
- Counting to a trillion, one number a second, would take over 30,000 years. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/trillion/#x4)
- Some countries' economies are worth trillions of dollars. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/trillion/#x5)
- There are trillions of tiny bacteria in your gut. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/trillion/#x6)
- I've asked you a trillion times to tidy your room! (informal) [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/trillion/#x7)

### note

After a number, «trillion» has no s: «three trillion», but «trillions of». Today in English a trillion = 10^12 (a million million). Trap: long ago in Britain «billion» meant a million million and «trillion» a million million million; old books may use these. In some other languages (like French «billion») the word means 10^12, so check translations. Maths: 1 trillion = 1,000 billion = 1,000,000 million.

### In the corpora

- [Germs include bacteria, viruses and fungi; most bacteria are harmless or helpful, and your gut holds trillions of useful ones.](https://md.mova.elamur.ai/free/en/corpora/school/medicine/30-germs-the-immune-system-and-hand-washing/5/)

### Trees and pragmatics

[Every meaning and example of «trillion» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/trillion/), each sentence with its dependency tree and frames.