avalanche

1. A large mass or body of snow and ice sliding swiftly down a mountain side, or falling down a precipice. 2. A fall of earth, rocks, etc., similar to that of an avalanche of snow or ice. 3. A sudden, great, or irresistible descent or influx of anything.

Source: Webster's Revised Unabridged Dictionary (1913), United States public domain. See methodology for full licensing detail. Word validity for game play may differ from any official game dictionary.