The Collaborative International Dictionary of English v.0.48:
K2 \K2\ n. A mountain in Northern Kashmir; it is one of the highest in the world, 28,250 feet high. Syn: Godwin Austen, Dapsang. [WordNet 1.5]WordNet (r) 3.0 (2006):
K2 n 1: a mountain peak in the Karakoram Range in northern Kashmir; the 2nd highest peak in the world (28,250 feet high) [syn: K2, Godwin Austen, Mount Godwin Austen, Dapsang]