Strong's #2692: katastrophe (pronounced kat-as-trof-ay')
 from 2690; an overturn ("catastrophe"), i.e. demolition; figuratively, apostasy:--overthrow, subverting.
Thayer's Greek Lexicon:
 ́ 
 
  katastrophē 
 
 1) overthrow, destruction
 
 1a) of cities
 
 2) metaphorically of the extinction of a spirit of consecration
 
  Part of Speech: noun feminine
Relation: from G2690
  Citing in TDNT: 7:715, 1093
 
Usage:
This word is used 2 times:
2 Timothy 2:14: "that they strive not about words to no profit, but to  the subverting of the"
2 Peter 2:6: "And turning the cities of Sodom and Gomorrah into ashes condemned  them with an overthrow,"