avalanche

1 of 2

noun

av·​a·​lanche ˈa-və-ˌlanch How to pronounce avalanche (audio)
1
: a large mass of snow, ice, earth, rock, or other material in swift motion down a mountainside or over a precipice
2
: a sudden great or overwhelming rush or accumulation of something
hit by an avalanche of paperwork
3
physics : a cumulative process in which photons or accelerated charge carriers produce additional photons or charge carriers through collisions (as with gas molecules)

avalanche

2 of 2

verb

avalanched; avalanching

intransitive verb

: to descend in an avalanche
Snow avalanched down the mountain.

transitive verb

: overwhelm, flood
The office was avalanched with applications.

Examples of avalanche in a Sentence

Noun He was buried by an avalanche.
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.
Noun
But with Disney’s decision to give the direct-to-consumer service away for no additional cost to cable subscribers, the product’s launch likely won’t cause an avalanche of cable subscription cancellations. Alex Sherman, CNBC, 21 Aug. 2025 The couple wanted to show them in a different light, David Bassett said, by teaching them to do avalanche work, much like the rescue work done by search-and-rescue dogs. Regina Elling, San Diego Union-Tribune, 20 Aug. 2025
Verb
James and the Lakers were getting avalanched, but a run to undo a 17-point deficit got them to within a point before the Memphis Grizzlies smothered them with a barrage of baskets. Houston Mitchell, Los Angeles Times, 27 Apr. 2023 The hillsides along Summit Lake will avalanche. John Schandelmeier, Anchorage Daily News, 10 Apr. 2022 See All Example Sentences for avalanche

Word History

Etymology

Noun and Verb

French, from French dialect (Franco-Provençal) lavantse, avalantse

First Known Use

Noun

1744, in the meaning defined at sense 1

Verb

1826, in the meaning defined at intransitive sense

Time Traveler
The first known use of avalanche was in 1744

Browse Nearby Words

Cite this Entry

“Avalanche.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/avalanche. Accessed 5 Sep. 2025.

Kids Definition

avalanche

noun
av·​a·​lanche
ˈav-ə-ˌlanch
1
: a large mass of snow and ice or of earth and rock sliding down a mountainside
2
: a sudden large amount
an avalanche of words
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!