noun murder.
2. massacre ·noun the killing of a considerable number of human beings under circumstances of atrocity or cruelty, or contrary to the usages of civilized people; as, the massacre on st. bartholomew's day.
3. massacre ·noun to kill in considerable numbers where much resistance can not be made; to kill with indiscriminate violence, without necessity, and contrary to the usages of nations; to butcher; to slaughter;
limited to the killing of human beings.