What is the meaning of murder?

noun

• Unlawful premeditated killing of a human being by a human being.
  • synonyms: slaying, execution

verb

• Kill intentionally and with premeditation.
  • usage: "The mafia boss ordered his enemies murdered"
  • synonyms: slay, hit, dispatch, bump off, off, polish off, remove
• Alter so as to make unrecognizable.
  • usage: "The tourists murdered the French language"
  • synonyms: mangle, mutilate