avalanche UK /ˈævəlɑːnʃ/US /ˈævəlæn(t)ʃ/noun 3verb 3forms 3 noun3 •A large mass or body of snow and ice sliding swiftly down a mountain side, or falling down a precipice.They were drinking from a fountain / That was pouring like an avalanche / Coming down the mountain — 1996 •A fall of earth, rocks, etc., similar to that of an avalanche of snow or ice. •A sudden, great, or irresistible descent or influx; anything like an avalanche in suddenness and overwhelming quantity.Yes, but she talked it away. She uses a whole language to herself. Her discourse is an avalanche of words, beneath which the hearers are overwhelmed. — 1834 verb3 •To descend like an avalanche.Soon the sun’s warmth makes them shed crystal shells Shattering and avalanching on the snow-crust— — 1916 •To come down upon; to overwhelm.The shelf broke and the boxes avalanched the workers. •To propel downward like an avalanche.Then another misfortune avalanched itself upon me, before even I had fully taken in the extent of the first. — 1930 formsavalanched · avalanching · avalanches