Cataclysm - A large-scale and violent event in the natural world

Scientists have predicted that a massive cataclysm, like a tsunami with 400-foot waves, could happen in the future.

Noun

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Cataclysm - A sudden violent upheaval, especially in a political or social context

Led by Vladimir Lenin, the Russian Revolution is considered one of the biggest cataclysms in history.

Noun

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