Search Result for "mass murder":
Wordnet 3.0

NOUN (1)

1. the savage and excessive killing of many people;
[syn: slaughter, massacre, mass murder, carnage, butchery]



WordNet (r) 3.0 (2006):

mass murder
    n 1: the savage and excessive killing of many people [syn:
         slaughter, massacre, mass murder, carnage,
         butchery]