Definition:
"Mass murder" is a noun that refers to the act of killing a large number of people at the same time or over a short period. It is usually done in a violent and cruel way.
In more advanced discussions, "mass murder" can be analyzed in terms of psychological, sociological, or legal perspectives. For example, one might discuss the motivations behind mass murders or the effects on communities.
While "mass murder" specifically refers to the killing of many people, in some contexts, it can be contrasted with terms like "genocide" (the intentional killing of a large group of people based on their nationality, ethnicity, or religion) or "serial killing" (the repeated killing of individuals over time, but not necessarily in large numbers at once).
There are no specific idioms or phrasal verbs that directly incorporate "mass murder," but you might encounter phrases like: - "The blood is on their hands," which means someone is responsible for causing death or suffering.
"Mass murder" is a serious term that describes the brutal killing of many individuals.