trillion

Từ điển Oxford Advanced Learner 8th

tril·lion [trillion trillions] BrE [ˈtrɪljən] NAmE [ˈtrɪljən] number
1. 1 000 000 000 000; one million million  You say a, one, two, several, etc. trillion without a final ‘s’ on ‘trillion’. Trillions (of…) can be used if there is no number or quantity before it. Always use a plural verb with trillion or trillions.
2. a trillionor trillions (of…) (informal)a very large amount  There are more examples of how to use numbers at the entry for hundred.
3. (old-fashioned, BrE)one million million million; 1 000 000 000 000 000 000

Word Origin:
late 17th cent.: from French, from million, by substitution of the prefix tri- ‘three’ for the initial letters.

• Từ đồng nghĩa / Synonyms:
  one million million, 1000000000000, one million million million, million, billion, zillion, jillion, gazillion