K2 /keɪˈtuː/ noun2 •A mountain on the border between Pakistan and Taxkorgan, Kashgar prefecture, Xinjiang, China, the world’s second highest mountain, located in the Ladakh Karakorams.Here we have K², the highest mountain at present open to Europeans to attempt, only 750 feet lower than Mount Everest.² — 1912 •(Philippines) Initialism of kinder two.
