Synonyms of the word

slaying

• n. Killing, especially murder of a human.
• v. present participle of slay.

execution

• n. The act, manner or style of executing (actions, maneuvers, performances).
• n. The state of being executed (accomplished).
• n. The act of putting to death or being put to death as a penalty, or actions so associated.
• n. (law) The carrying into effect of a court judgment, or of a will.
• n. (law) The formal process by which a contract is made valid and put into binding effect.
• n. (computing) The carrying out of an instruction, program or program segment by a computer.

homicide

• n. (uncountable) The killing of one person by another, whether premeditated or unintentional.
• n. (countable) A person who kills another.
• n. (countable, US, police jargon) A victim of homicide; a person who has been unlawfully killed by someone…

murder

• n. (countable) An act of deliberate killing of another being, especially a human.
• n. (uncountable) The crime of deliberate killing of another human.
• n. (uncountable, law, in jurisdictions which use the felony murder rule) The commission of an act which abets…
• n. (uncountable, used as a predicative noun) Something terrible to endure.
• n. (countable, collective) A group of crows; the collective noun for crows.
• v. To deliberately kill (a person or persons).
• v. (transitive, sports, figuratively, colloquial) To defeat decisively.
• v. To botch or mangle.
• v. (figuratively, colloquial) To kick someone's ass or chew someone out (used to express one’s anger at somebody).
• v. (figuratively, colloquial, Britain) to devour, ravish.