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English definition of “avalanche”

avalanche

noun [C]  /ˈæv·əˌlæntʃ/ us  
a large amount of ice, snow, dirt, or rock falling suddenly and quickly down the side of a mountain fig. An avalanche is also the sudden arrival of too many things: We received an avalanche of complaints.
(Definition of avalanche from the Cambridge Academic Content Dictionary © Cambridge University Press)
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