gazillion

noun

ga·​zil·​lion gə-ˈzil-yən 

plural gazillions

informal

: a huge, unspecified number : zillion

According to William Miller, Jr., VMD, a professor of dermatology at Cornell University's College of Veterinary Medicine, there are "gazillions" of different types of fungi existing in nature, including molds, yeasts, mildews and so forth.

—Tom Ewing

… the seemingly gazillions of options available to us compared to our parents' generation.

—Michele Bender

—often used with another noun

With just over a gazillion pages on the Web, navigating the far reaches of cyberspace without a search engine is nearly impossible.

—Angela Hickman et al.

gazillionth

gə-ˈzil-yən(t)th 

adjective

… my friend Kathy and I are going to see Def Leppard on Monday night in Cincinnati for the gazillionth time.

—Nancy Wilson

Examples of gazillion in a Sentence

Recent Examples on the Web

Isabella is a fictional character, but she’s drawn very heavily from reading a gazillion biographies of Elizabeth Taylor and Grace Kelly and Audrey Hepburn and all the stars of that era, just to soak in what their experiences were like. —Michael Schaub, Oc Register, 23 July 2025

Despite earning a nearly $500 million contract and gazillions in endorsements and world-wide fame, Mahomes by every observable measure is somewhere between unspoiled and unfazed by it all. —Kansas City Star, 18 July 2025

This was recommended a dozen years ago by the Blue Ribbon Commission on America’s Nuclear Future, and by at least a gazillion experts both before and since. —Teri Sforza, Oc Register, 18 June 2025

Sonny is an analog, slightly peculiar fellow who doesn’t jibe with a modern F1 landscape – while Joshua runs with a gazillion high-tech gadgets hooked up to him, the veteran is off jogging around a Grand Prix track. —Brian Truitt, USA Today, 18 June 2025

Word History

Etymology

alteration of zillion

First Known Use

1977, in the meaning defined above

Rhymes for gazillion

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

Kids Definition

gazillion

noun

ga·​zil·​lion gə-ˈzil-yən 

informal

: zillion