meltmelt /mɛlt/ ●●● verb 1 [intransitive, transitive] to change something from solid to liquid by heating: The snow’s melting. Melt the butter, and add the chopped onion.2[intransitive] to suddenly feel love or sympathy: My heart melted when I saw her crying.3melt in your mouth if food melts in your mouth, it is smooth and tastes extremely good [Origin: Old English meltan]melt away phrasal verb to disappear quickly and easily: He began to exercise regularly, and the weight melted away.