melt verb \ˈmelt\ : to change or to cause (something) to change from a solid to a liquid usually because of heat : to gradually become less or go away : to begin to have feelings of love, kindness, sympathy, etc.
crack verb \ˈkrak\ : to break (something) so that there are lines in its surface but it is usually not separated into pieces : to hit or press (something) so hard that it breaks apart or opens suddenly