Ma'anar ma'anar kalmar "Cux na batun" shine mafi mahimmancin batun batun ko matsala. Yana nufin muhimmin abu ko misalin pivotal wanda ke ƙayyade sakamakon ko ƙuduri na halin da ake ciki. Kalmar "Crazx" ta samo asali ne daga kalmar Latin "Cox," ma'ana giciye ko matsala, kuma ana yawan amfani da shi don bayyana matsala don warware matsala.
