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We found 39 dictionaries with English definitions that include the word trillion:
Click on the first link on a line below to go directly to a page where "trillion" is defined.

General dictionaries General (30 matching dictionaries)
  1. trillion: Oxford Dictionaries [home, info]
  2. trillion: American Heritage Dictionary of the English Language [home, info]
  3. trillion: Collins English Dictionary [home, info]
  4. trillion: Vocabulary.com [home, info]
  5. trillion: Macmillan Dictionary [home, info]
  6. trillion: Merriam-Webster's Online Dictionary, 11th Edition [home, info]
  7. Trillion, trillion: Wordnik [home, info]
  8. trillion: Cambridge Advanced Learner's Dictionary [home, info]
  9. Trillion: Wiktionary [home, info]
  10. trillion: Webster's New World College Dictionary, 4th Ed. [home, info]
  11. trillion: The Wordsmyth English Dictionary-Thesaurus [home, info]
  12. trillion: Infoplease Dictionary [home, info]
  13. trillion: Dictionary.com [home, info]
  14. trillion: Online Etymology Dictionary [home, info]
  15. trillion: UltraLingua English Dictionary [home, info]
  16. trillion: Cambridge Dictionary of American English [home, info]
  17. Trillion (band), Trillion (horse), Trillion (long scale), Trillion (short scale), Trillion: Wikipedia, the Free Encyclopedia [home, info]
  18. Trillion: Online Plain Text English Dictionary [home, info]
  19. trillion: Webster's Revised Unabridged, 1913 Edition [home, info]
  20. trillion: Rhymezone [home, info]
  21. Trillion: AllWords.com Multi-Lingual Dictionary [home, info]
  22. trillion: Webster's 1828 Dictionary [home, info]
  23. Trillion: American-Britih Dictionary [home, info]
  24. trillion: Free Dictionary [home, info]
  25. trillion: Mnemonic Dictionary [home, info]
  26. trillion: WordNet 1.7 Vocabulary Helper [home, info]
  27. trillion: LookWAYup Translating Dictionary/Thesaurus [home, info]
  28. trillion: Dictionary/thesaurus [home, info]

Business dictionaries Business (1 matching dictionary)
  1. trillion: BusinessDictionary.com [home, info]

Computing dictionaries Computing (3 matching dictionaries)
  1. trillion: Free On-line Dictionary of Computing [home, info]
  2. trillion: CCI Computer [home, info]
  3. Trillion (disambiguation), trillion: Encyclopedia [home, info]

Medicine dictionaries Medicine (1 matching dictionary)
  1. trillion: online medical dictionary [home, info]

Science dictionaries Science (3 matching dictionaries)
  1. Trillion: Eric Weisstein's World of Mathematics [home, info]
  2. trillion: MATH SPOKEN HERE! [home, info]
  3. Trillion: Extragalactic Astronomy [home, info]

Slang dictionaries Slang (1 matching dictionary)
  1. TRILLION: Urban Dictionary [home, info]

Quick definitions from Macmillan (
American English Definition British English Definition

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Quick definitions from WordNet (trillion)

noun:  the number that is represented as a one followed by 12 zeros ("In England they call a trillion a billion")
noun:  the number that is represented as a one followed by 18 zeros ("In England they call a quintillion a trillion")
adjective:  one million million in the United States
adjective:  one quintillion in Great Britain

Word origin

Popular adjectives describing trillion

Popular nouns described by trillion

Phrases that include trillion:   trillion daze, trillion dollar bill

Words similar to trillion:   1000000000000, trillionth, a trillion, one million million, one million million million, more...

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