belt-tightening vs reversal

belt-tightening

adj
  • Causing or involving a reduction in expenditure. 

noun
  • A reduction in expenditure, often as a result of financial restrictions. 

reversal

adj
  • Intended to reverse; implying reversal. 

noun
  • A change in fortune; a change from being successful to having problems. 

  • An instance of reversing. 

  • The state of being reversed. 

How often have the words belt-tightening and reversal occurred in a corpus of books? (source: Google Ngram Viewer )