Avalanche Definition

ăvə-lănch
avalanched, avalanches, avalanching
noun
avalanches
A fall or slide of a large mass of material, especially of snow, down a mountainside.
American Heritage
A mass of loosened snow, earth, rocks, etc. suddenly and swiftly sliding down a mountain, often growing as it descends.
Webster's New World
A massive or overwhelming amount; a flood.
Received an avalanche of mail.
American Heritage
Any large, overwhelming quantity that comes suddenly.
An avalanche of mail, of blows, etc.
Webster's New World

A large mass or body of snow and ice sliding swiftly down a mountain side, or falling down a precipice.

Wiktionary
verb
avalanched, avalanches, avalanching
To fall or slide in a massive or overwhelming amount.
American Heritage
To come down (on) like an avalanche.
Webster's New World
To overwhelm; inundate.
American Heritage
(intransitive) To descend like an avalanche.
Wiktionary
To come down upon; to overwhelm.
The shelf broke and the boxes avalanched the workers.
Wiktionary
Synonyms:
  • roll down

Other Word Forms of Avalanche

Noun

Singular:
avalanche
Plural:
avalanches

Origin of Avalanche

  • From French, from Franco-Provençal (Savoy) avalançhe, blend of aval ‘downhill’ and standard lavençhe, from Vulgar Latin *labanka (cf. Occitan lavanca, Italian valanga), alteration of Late Latin labina ‘landslide’ (cf. Franco-Provençal (Dauphiné) lavino, Romansch lavina), from Latin labi ‘to slip, slide’.

    From Wiktionary

  • French Provençal lavanca ravine perhaps ultimately from Latin lābī to slip

    From American Heritage Dictionary of the English Language, 5th Edition

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