Avalanche
/ˈævəˌlæntʃ/
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Definition
(noun) A large mass or body of snow and ice sliding swiftly down a mountain side, or falling down a precipice.
Sentence Examples
As soon as you contact your friends, tell them that an avalanche is coming.
A small snowball is capable of starting an avalanche.
CEFR Practice Quiz
The skiers were warned about the high risk of an ____ in the mountains.