Definition of zillion in English:

Share this entry


Pronunciation: /ˈzilyən/

cardinal number

An extremely large number of people or things: we had zillions of customers
More example sentences
  • A few quick mathematical calculations will show that there's heaps, piles, zillions more places where conditions like this exist in Space than on a planet's surface.
  • There are zillions of people - not zillions, millions and millions of people in this country who know exactly what's going on.
  • ‘I'd like to be a famous rock star with a million zillions of dollars,’ she says.



Pronunciation: /ˈzilyənTH/
Example sentences
  • For the zillionth time that day, we sat and watched the screen as it fizzed black and white shapes that during the course of the last three hours had scrambled my tiny mind.
  • Word limits are bad, it feels like my essay is about a zillionth as good.
  • Corey looked down, feeling herself blush for the zillionth time.


1940s: from Z (perhaps as a symbol of an unknown quantity) + million.

Words that rhyme with zillion

billion, jillion, million, bajillion, modillion, multibillion, multimillion, pillion, septillion, sextillion, squillion, trillion

For editors and proofreaders

Syllabification: zil·lion

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.