trillion

play
noun tril·lion \ˈtri(l)-yən\

Definition of trillion

  1. 1 — see number table

  2. 2 :  an indeterminately large number <a trillion mosquitoes out tonight>

trillion

adjective

trillionth

play \-yən(t)th\ adjective or noun

Origin and Etymology of trillion

French, from tri- + -illion (as in million)


First Known Use: 1690


TRILLION Defined for English Language Learners

trillion

play
noun tril·lion \ˈtri(l)-yən\

Definition of trillion for English Language Learners

  • : the number 1,000,000,000,000 : one thousand billion

  • : a very large amount or number

  • : the number 1,000,000,000,000,000,000 : one million million million


TRILLION Defined for Kids

trillion

play
noun tril·lion \ˈtril-yən\

Definition of trillion for Students

  1. :  a thousand billions


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to decrease in size, extent, or degree

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