Meaning ofcatastrophein English

Noun

1. a sudden event with severe consequences
   The earthquake was a catastrophe that destroyed the city.
2. an unexpected disaster (insurance context)
   The insurance company covered the catastrophe caused by the hurricane.
3. a plot twist leading to resolution; dénouement
   The novel's catastrophe occurred when the main character discovered the truth.
4. a system shift between stable states (mathematics)
   The mathematical model predicted a catastrophe when the system reached a critical point.