extinction event

noun 0.840

extinction

noun 0.738

interstellar extinction

noun 0.670

extermination

noun 0.622

ecocide

noun 0.588

endangered species

noun 0.574

world ending

noun 0.572

climate catastrophe

noun 0.569

macroevolution

noun 0.569

end of the world

noun 0.568

cataclysm

noun 0.558

speciation event

noun 0.552

mass burial

noun 0.547

mass murder

noun 0.545

natural disaster

noun 0.544

genocide

noun 0.532

extinguishing

noun 0.531

apocalypse

noun 0.526

annihilation

noun 0.526

ice age

noun 0.525

catastrophe

noun 0.525

expiration

noun 0.515

armageddon

noun 0.511

overexploitation

noun 0.503

speciation

noun 0.502