Ka’ba: the first place on earth for the worship of the One True God in Mecca. It means a protruding object . Abraham built this structure with his son Ishmael. Muslims face this location to perform their daily required ritual devotion.
Kaffara: penalty payment made when one commits certain mistakes and errors in religious practice like fasting and oaths.
Kafir: an ungrateful person. A disbeliever who does not believe in God properly and does not accept the teachings of Muhammad.
Khutbah: lecture and sermon given during the Friday congregation