General terms:
* Snowdrift - This is the most common term for a large accumulation of snow, especially one that has been piled up by wind.
* Snowbank - This term is similar to snowdrift, but it can also refer to a more static pile of snow, perhaps against a building or a fence.
* Snowfield - This refers to a large, flat area of snow, often found in mountainous regions.
More specific terms:
* Avalanche - A large mass of snow and ice that slides down a slope.
* Snow cornice - A large, overhanging mass of snow that forms on a mountain ridge.
* Snow patch - A smaller, localized accumulation of snow.
The best term to use will depend on the specific context and the size and shape of the snow accumulation.
