convergence vs gathering

convergence

noun
  • A meeting place. 

  • The evolution of similar structures or traits in unrelated species in similar environments; convergent evolution. 

  • The hypothesis that poorer economies' per capita incomes tend to grow faster than richer economies. 

  • The intersection of three electron beams for red, green and blue onto a single pixel in a CRT. 

  • The coordinated focusing of the eyes, especially at short range. 

  • The merging of distinct technologies, industries, or devices into a unified whole. 

  • The act of moving toward union or uniformity. 

  • The process or property of approaching some limiting value. 

gathering

noun
  • A meeting or get-together; a party or social function. 

  • A group of people or things. 

  • A section, a group of bifolios, or sheets of paper, stacked together and folded in half. 

  • The collection of produce, items, goods, etc.; the practice of collecting food from nature. 

  • A tumor or boil suppurated or maturated; an abscess. 

  • A charitable contribution; a collection. 

adj
  • That gathers together. 

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