whiteout

noun

white·​out ˈ(h)wīt-ˌau̇t 

: a surface weather condition in a snow-covered area (such as a polar region) in which no object casts a shadow, the horizon cannot be seen, and only dark objects are discernible

also : a blizzard that severely reduces visibility

Examples of whiteout in a Sentence

We got caught in a whiteout.

Recent Examples on the Web

Expect whiteout conditions with the gusty winds. — Ca Weather Bot, Sacbee.com, 30 Mar. 2026

The storm brought whiteout conditions, strong winds and dangerous travel, forcing closures and stranding drivers across the state. — Brandi D. Addison, Freep.com, 17 Mar. 2026

Then conditions suddenly turn whiteout, disorienting at best and fatal at worst. — Laura Dannen Redman, Robb Report, 29 Mar. 2026

On the other hand, sudden whiteout conditions on a wintry day would sound like a cacophony of sensor readings and network chatter. — Ana I. Pérez-Neira, IEEE Spectrum, 7 Apr. 2026

Word History

Etymology

white entry 1 + -out (in blackout)

First Known Use

1946, in the meaning defined above

Rhymes for whiteout

• roundabout
• runabout
• sauerkraut
• thereabout
• turnabout
• about
• bailout
• blackout
• blowout
• breakout
• burnout
• buyout