zillion

noun

zil·​lion ˈzil-yən 

: an indeterminately large number

zillions of mosquitoes

zillionth

ˈzil-yən(t)th 

adjective

Examples of zillion in a Sentence

I have a zillion chores to finish before we can leave.

Recent Examples on the Web

And while the namesake flowers are a specific yellow blossom that pops out in the autumn, there are colorful flowers and a zillion shades of green throughout the year. —Ann Abel, Forbes.com, 27 June 2025

In a world of a million water options—sparkling, flavored, and about a zillion combinations of the two—my husband and I have a special place in our hearts (and our refrigerator) for coconut water. —Tara Massouleh McCay, Southern Living, 21 June 2025

That said, 2028 is a zillion political light years and countless news cycles away. —Mark Z. Barabak, Los Angeles Times, 22 June 2025

That depends on your tolerance for the sight and sound of zillions of winged bugs appearing at once, settling in trees, getting crunched underfoot, and often splooching against your windshield. —Jeffrey Kluger, Time, 8 May 2025

Word History

Etymology

z + -illion (as in million)

First Known Use

1934, in the meaning defined above

Rhymes for zillion

• billion
• million
• pillion
• trillion
• castilian
• civilian
• cotillion
• pavilion
• postilion
• quadrillion
• reptilian
• vermilion

Kids Definition

zillion

noun

zil·​lion ˈzil-yən 

: a large number

zillions of ants