可汗 (Khan) is a title historically used by various Central Asian rulers and leaders, particularly among the Mongols. It signifies a sovereign or military leader, often associated with authority and governance. The most famous figure to hold this title is 成吉思汗 (Genghis Khan), who united the Mongol tribes in the early 13th century and established one of the largest empires in history. The term "可汗" has also been used in various cultures to denote leadership and nobility. In modern contexts, it can refer to influential figures in politics or society, reflecting a legacy of power and respect that transcends its original historical meaning.