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big one

American

noun

Slang.

a one-thousand-dollar bill or the sum of one thousand dollars.

Etymology

Origin of big one

First recorded in 1955–60

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Famed trader Paul Tudor Jones, who famously predicted the 1987 crash, isn’t just worried—he’s envisioning exactly how the next big one could play out.

From Barron's • Apr. 29, 2026

Under Jobs, Apple launched culturally defining products, including the iPod, the iMac, the iPad, and the big one, the iPhone.

From Barron's • Apr. 24, 2026

"It will be a very entertaining fight for sure, and I'm looking forward to it. It is tough to call, so I'm going to say whoever lands the big one first will take it."

From BBC • Apr. 4, 2026

The catch, and it’s a big one, is that the show is entirely written by artificial intelligence.

From Salon • Mar. 26, 2026

“Observant. Yes, it is. I always have to have a sketch pad with me. I left the big one at the dorm, but I had to bring this one.”

From "When Dimple Met Rishi" by Sandhya Menon

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023