a mountain in the central Himalayas on the border of Tibet and Nepal (25,726 feet high)

Nuptse is a mountain in the Khumbu region of the Mahalangur Himal, in the Nepalese Himalaya. It lies two kilometres WSW of Mount Everest. Nuptse is Tibetan for "west peak", as it is the western segment of the Lhotse-Nuptse massif.