The definition of a massacre is the killing of a large number of people or animals at random and without mercy.(noun)
An example of a massacre was the Holocaust.
See massacre in Webster's New World College Dictionary
Origin: Fr < OFr maçacre, macecle, butchery, shambles < ?
See massacre in American Heritage Dictionary 4
Origin: , from Old French macecle, macecre, butchery, shambles.
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