apportionment vs belt-tightening

apportionment

noun
  • The allocation of direct taxation according to the population of the various states. 

  • The act of apportioning or the state of being apportioned. 

  • The distribution of members of the House of Representatives according to the population of the various states. 

belt-tightening

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

adj
  • Causing or involving a reduction in expenditure. 

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