a large mass of snow and ice sliding down a mountain side

falling large mass; sudden rush of large quantity

a sudden and violent change (e.g. an earthquake, a political or social revolution)

disaster

a large amount of water; violin rainfall

downpour, flood of something

a heavy fall of rain

tremendous pouring of rain

more than is usual, allowed etc

overabundance of something

a large great quantity of water in a place that is usually dry

overwhelming flow, quantity

something (a liquid, gas etc) that flows in

flow, rush

a constant flowing in of large numbers or quantities

flow, rush

a sudden movement, flow

flow, rush

an amount of a drug that is too much

excess

a strong rush of liquid (especially water); a violent outpouring

heavy flow