intransitive verb
Definition: To change from a solid to a liquid state, usually due to heat, or to gradually disappear or dissolve.
Example: The ice will melt if you leave it in the sun for too long.
noun
Definition: A substance that has been turned from solid to liquid, often due to heat, or a type of sandwich with melted cheese.
Example: I ordered a tuna melt for lunch, which was delicious and cheesy.
transitive verb
Definition: To change something from a solid to a liquid by applying heat or to cause it to disappear gradually.
Example: The sun will melt the ice on the road.