belt-tightening vs obliteration

belt-tightening

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

adj
  • Causing or involving a reduction in expenditure. 

obliteration

noun
  • The cancellation, erasure or deletion of something. 

  • The cancellation of the function, structure, or both of a vessel or organ; for example, the occlusion of the lumen of a duct, blood vessel, or lymphatic vessel, be it solely functional (as when squeezed by nearby mass effect or inflammation) or both structural and functional (as when clogged with thrombus, embolus, or fibrosis). 

  • The total destruction of something. 

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