Mass murder

thumb|link=Warsaw Ghetto boy|The Holocaust heavily influences the popular understanding of genocide, as [[mass killing of innocent people based on their ethnic identity.]]

weapon with the capacity to indiscriminately kill a very large number of people and cause great physical, economic and environmental damage

act of killing a large number of people by non-state actors

thumb|right|upright=1.0|Le Massacre de Scio ("The Chios massacre"), a 1824 painting by [[Eugène Delacroix depicting the massacre of Greeks on the island of Chios by Ottoman troops during the Greek War of Independence in 1822]]

incident in which an active shooter shoots multiple people with a firearm, especially with an intent to kill in a public space

separatist conflict in the region of West Papua

thumb|The monumental slab at the entrance to the Sandarmokh burial grounds reads: "People! do not kill one another". Sandarmokh (; ) is a forest massif from Medvezhyegorsk in the Republic of Karelia where an unknown number, estimated in the thousands, of victims of Stalin's Great Terror were executed. More than 58 nationalities were shot and buried there by the NKVD in 236 communal pits over a 14-month period in 1937 and 1938.

an event in which a pilot deliberately crashes or attempts to crash an aircraft as a way to kill themself and sometimes passengers on board or people on the ground

acts committed by Indonesian government during its occupation of East Timor (1975–1999)

300px|thumb|A Soviet parade between 1929 and 1934 under the banners "We will Dekulakization|liquidate the [[kulaks as a class" and "All to the struggle against the wreckers of agriculture"]] 300px|thumb|Bolsheviks in 1918 in Petrograd under a propaganda poster saying "Death to the bourgeoisie and its lapdogs – Long live the [[Red Terror!!"]] 300px|thumb|A wealthy Peasant#Chinese farmers|farmer in front of a Chinese Communist "people's court" in [[Fogang County, Guangdong Province on July 23, 1952 during the Land Reform Movement, which saw the mass killings of landlords]]

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Israeli airstrikes on civil targets in Gaza Strip (2023–present)

single incident where multiple victims are harmed or killed in a knife-enabled crime

American slang

Soviet (Ukrainian) Major-General who carried out the Katyn Massacre in World War 2.