catastrophe · noun C or U /kəˈtæs.trə.fi/Full view
C2 an extremely bad event that causes a lot of suffering or destruction
Dictionary example:

After the drought, the country is facing environmental catastrophe.

Learner example:

In Asian and African societies, where time is seen as a circle, rather than a straight line with [a] definite beginning and end, the legacy of past generations is regarded with due respect as the main source of wisdom and deliverance from natural catastrophes as well as everyday difficulties. (Certificate of Proficiency in English; C2; Polish)

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