belt-tightening vs condensation

belt-tightening

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

adj
  • Causing or involving a reduction in expenditure. 

condensation

noun
  • The state of being condensed. 

  • The condensate so formed. 

  • when a single idea (an image, memory, or thought) or dream object stands for several associations and ideas. 

  • The reaction of two substances with the simultaneous loss of water or other small molecule. 

  • The conversion of a gas to a liquid. 

  • The act or process of condensing or of being condensed 

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