Dictionary.com

zillion

[ zil-yuhn ]
/ ˈzɪl yən /
Informal.
Save This Word!
See synonyms for: zillion / zillions on Thesaurus.com

noun, plural zil·lions, (as after a numeral) zil·lion.
an extremely large, indeterminate number.
adjective
of, relating to, or amounting to a zillion.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.

Origin of zillion

First recorded in 1930–35; jocular alteration of million, billion, etc.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use zillion in a sentence

British Dictionary definitions for zillion

zillion
/ (ˈzɪljən) informal /

noun plural -lions or -lion
(often plural) an extremely large but unspecified number, quantity, or amountzillions of flies in this camp
determiner
  1. amounting to a zilliona zillion different problems
  2. (as pronoun)I found a zillion under the sink

Word Origin for zillion

C20: on the model of million
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK