whiteout

noun

white·​out ˈ(h)wīt-ˌau̇t How to pronounce whiteout (audio)
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Three men were on a training hike when they got caught in whiteout conditions and had to send an SOS message, New Hampshire rescuers said. Helena Wegner, Sacramento Bee, 10 Feb. 2025 Bolognesi rates the latter an 8 out of 10, with a 10 being whiteout conditions. Jen Murphy, Robb Report, 8 Feb. 2025 Two experienced hikers were rescued from the tallest mountain in the Northeast after a whiteout snowstorm stranded them at about 5,000 feet on Sunday, authorities said. Stephen Sorace, Fox News, 6 Feb. 2025 Montana's Department of Transportation warns that road conditions could become impassable in higher elevations, with whiteout conditions making travel extremely dangerous. Anders Fogh Rasmussen, Newsweek, 4 Feb. 2025 See all Example Sentences for whiteout 

Word History

Etymology

white entry 1 + -out (in blackout)

First Known Use

1946, in the meaning defined above

Time Traveler
The first known use of whiteout was in 1946

Dictionary Entries Near whiteout

Cite this Entry

“Whiteout.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/whiteout. Accessed 16 Feb. 2025.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!