rivet vs sum

rivet

noun
  • Any fixed point or certain basis. 

  • A cylindrical mechanical fastener that attaches multiple parts together by fitting through a hole and deforming the head(s) at either end. 

verb
  • To command the attention of. 

  • To attach or fasten parts by using rivets. 

  • To make firm or immovable. 

  • To install rivets. 

sum

noun
  • A central idea or point; gist. 

  • The basic unit of money in Uzbekistan. 

  • The utmost degree. 

  • A summary; the principal points or thoughts when viewed together; the amount; the substance; compendium. 

  • A quantity of money. 

  • The basic unit of money in Kyrgyzstan. 

  • A type of administrative district used in China, Mongolia, and Russia. In Mongolia, a sum is smaller than a province. In China, it is only used in Inner Mongolia, where it is equivalent to a township. 

  • An arithmetic computation, especially one posed to a student as an exercise (not necessarily limited to addition). 

  • A quantity obtained by addition or aggregation. 

verb
  • To add together. 

  • To give a summary of. 

How often have the words rivet and sum occurred in a corpus of books? (source: Google Ngram Viewer )