Stab : thrust a knife or other pointed weapon into (someone) so as to wound or kill.Slaughter : the killing of a large number of people or animals in a cruel or violent way.Murder : the unlawful premeditated killing of one human being by another.Assassinate : murder (an important person) for political or religious reasons.Massacre : an indiscriminate and brutal slaughter of many people.Synonym of Massacre is Slaughter