|—vb , melts, melting, melted, melted, molten|
|1.||to liquefy (a solid) or (of a solid) to become liquefied, as a result of the action of heat|
|2.||to become or make liquid; dissolve: cakes that melt in the mouth|
|6.||to make or become emotional or sentimental; soften|
|7.||the act or process of melting|
|8.||something melted or an amount melted|
|[Old English meltan to digest; related to Old Norse melta to malt (beer), digest, Greek meldein to melt]|
In addition to the idiom beginning with melt, also see butter wouldn't melt.