Yes, the word 'avalanche' is a noun, a singular, common, concrete noun; a word for a mass of snow, ice, and rocks falling rapidly down a mountainside; a word for a thing.
Depending on context, "avalanche" can be a noun or a verb.
The collective noun is an avalanche of rocks.
no Only if it is part of a proper noun.
Avalanche.
is an avalanche a decomposer
The forestry service caused a preemptive avalanche. Saint Bernard dogs are handy to have around when there's been an avalanche. The mailman struggled under an avalanche of letters.
I Am the Avalanche was created in 2004.
there has been an avalanche. a skier was killed by the avalanche the secretary was dismayed by the avalanche of letters that fell on her as she entered her study.
The sudden sliding of snow is called an avalanche. Usually when there is an avalanche there is a lot of snow that slides from on top of a mountain.
the avalanche was very big
The avalanche buried the small village. We saw an avalanche on the mountain.
une avalanche (fem.)