"The engineer poured the molten metal from the furnace into the mold to cast a new engine block."
In plain English: A melt is an old-fashioned word for something that has been melted down into liquid form, often referring to coins or metal.
"The melting point was reached when the ice began to melt into water."
Usage: As a noun, melt refers specifically to molten material or lava flowing over land rather than ice that has turned into water. Use this term when describing volcanic rock in its liquid form instead of synonyms like "magma," which is still underground.
Verb
1
reduce or cause to be reduced from a solid to a liquid state, usually by heating
The word "melt" comes from Middle English, where it combined two Old English words meaning "to melt" or "digest." Its ultimate origin traces back to a Proto-Indo-European root that also gave rise to the Icelandic word for digestion.