[{"Bold_text": "noun", "List Items": ["the unnecessary, indiscriminate killing of a large number of human beings or animals, as in barbarous warfare or persecution or for revenge or plunder.Synonyms: extermination , genocide , butchery , carnage", "a general slaughter, as of persons or animals:the massacre of millions during the war.Synonyms: extermination , genocide , butchery , carnage", "Informal.a crushing defeat, especially in sports."]}, {"Bold_text": "verb (used with object)", "List Items": ["to kill unnecessarily and indiscriminately, especially a large number of persons.Synonyms: slay", "Informal.to defeat decisively, especially in sports."]}]