Cyber Monday

American

[sahy-ber muhn-dey, -dee] / ˈsaɪ bər ˈmʌn deɪ, -di /

noun

the Monday after Thanksgiving, one of the busiest online shopping days.

I did a lot of online shopping on Cyber Monday, but I was disappointed there weren’t more free-shipping deals.

Etymology

Origin of Cyber Monday

First recorded in 2005–10

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.

It said it processed 837 million transactions on the Black Friday through Cyber Monday weekend.

From MarketWatch • Feb. 12, 2026

Amid anxiety around inflation, tariffs and layoffs, shoppers still opened up their wallets, especially during Cyber Monday, the biggest e-commerce day of the season.

From Los Angeles Times • Jan. 7, 2026

Coupland notes the brief Cyber Monday outage affected only a subset of users and doesn’t overshadow sales momentum.

From The Wall Street Journal • Dec. 5, 2025

Online shopping helped drive success for retailers on Black Friday, so the optimism was running high heading into the biggest e-commerce day of the year, which is Cyber Monday.

From Barron's • Dec. 2, 2025

Plus, for Cyber Monday, use the code CYBER40 at checkout for an extra 40% off the sale price.

From Salon • Nov. 23, 2017

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