murder

(uncountable) The crime of deliberately killing a person without moral justification.

(countable) The act of deliberate killing of a person or other being without moral justification, especially with malice aforethought.

(uncountable, law, in jurisdictions which use the felony murder rule) The commission of an act which abets the commission of a crime the commission of which causes the death of a human.

(uncountable, used as a predicative noun) Something terrible to endure.

(countable, collective) A group of crows; the collective noun for crows.