General terms:
* Mountain: This is the most common term for a very large hill, usually with a distinct peak and a significant elevation change.
* Hill: Even very large hills can still be called hills, especially if they don't have the dramatic features of a mountain.
* Butte: A steep-sided hill with a flat top.
* Mesa: A flat-topped hill with steep sides, often larger than a butte.
More specific terms:
* Highland: A large area of elevated land, often with hills and mountains.
* Plateau: A large, flat area of high ground, often with cliffs on one or more sides.
* Moor: A large, open area of high ground, usually covered in heath and bogs.
* Uplift: A geological term for a large area of land that has been raised by tectonic forces.
The specific term you use will depend on the context and the particular features of the hill.
