verb

• (ergative) To change (or to be changed) from a solid state to a liquid state, usually by a gradual heat.
  "I melted butter to make a cake."
• (intransitive, figuratively) To dissolve, disperse, vanish.
  "His troubles melted away."
• (transitive, figurative) To soften, as by a warming or kindly influence; to relax; to render gentle or susceptible to mild influences; sometimes, in a bad sense, to take away the firmness of; to weaken.
  "Thou would'st have […] melted down thy youth."
• (intransitive) To be discouraged.

noun

• (geology) Rock showing evidence of having been remelted after it originally solidified.
  "Numerous samples of breccia and impact melts were recovered by drilling into the floor of the crater."
• (UK, slang, derogatory) An idiot.
  "You are from Blackburn you fucking melt...have a bastard word with yourself."
• (UK, politics, slang, derogatory) A centre-left or liberal person, when in opposition to a leftist; (especially) a critic of Jeremy Corbyn within the Labour Party.
  "Anyone who said different was a Tory, a melt or – worse – a Blairite. Centrists (mostly Labour voters) were the devil incarnate."

noun

• (computing) Acronym of metrics, events, logs, and traces.
  "Another way to describe APM suites is that they are the monitoring technology that makes MELT data collection possible and useful for SREs."