Yes, melts is a Scrabble word!

Verb

1. Reduce or cause to be reduced from a solid to a liquid state, usually by heating

2. Become or cause to become soft or liquid

3. Become more relaxed, easygoing, or genial

4. Lose its distinct outline or shape; blend gradually

5. Become less clearly visible or distinguishable; disappear gradually or seemingly

6. Become less intense and fade away gradually

Noun

1. The process whereby heat changes something from a solid to a liquid