(a) large or sudden misfortune (e.g. a flood or fire, an earthquake, a serious defeat in war, the loss of a large sum of money)
accident, trouble
Cases of word usage
1) a big and serious misfortune or disaster (e.g. an earthquake or flood) (calamity)
2) causing disaster (disastrous)
3) to (try to) find or describe the exact cause of (a disaster or failure or the exact position of something) (pinpoint)
4) the act of saving, the state of having been saved, from sin; something that prevents loss, disaster etc (salvation)
