1. a large mass of snow, ice, and rocks falling rapidly down a mountainside
2. a sudden large amount of something
Usage: figurative

1. to fall or rush down like an avalanche
2. to overwhelm with a large amount of something

Examples

• The avalanche buried the mountain road under ten feet of snow.
• Skiers were warned about avalanche conditions in the backcountry.
• She received an avalanche of emails after the announcement.
• Complaints avalanched into the customer service department.
• The team was avalanched with requests for interviews.
• An avalanche of criticism followed the politician’s remarks.
• Rocks avalanched down the steep cliff face.