Kavkhan is a word that comes from a faraway land called Central Asia, and it means a leader or a ruler of a place or a group of people. Think of a kavkhan like the captain of a ship or the boss of a team. They make all the important decisions and tell everyone what to do, like where to go and what to do when they get there.
In Central Asia, there were many different groups of people who had their own kavkhans. These kavkhans would lead their armies to battle and make sure their people had everything they needed. Sometimes, kavkhans would even make alliances with other kavkhans to make their groups stronger and better able to defend themselves.
So, in simple terms, a kavkhan is like the leader of a group or a country, who makes important decisions and looks after their people.