digest vs expansion

digest

noun
  • Any collection of articles, as an Internet mailing list including a week's postings, or a magazine arranging a collection of writings. 

  • That which is digested; especially, that which is worked over, classified, and arranged under proper heads or titles 

  • A compilation of statutes or decisions analytically arranged; a summary of laws. 

  • The result of applying a hash function to a message. 

verb
  • To distribute or arrange methodically; to work over and classify; to reduce to portions for ready use or application. 

  • To think over and arrange methodically in the mind; to reduce to a plan or method; to receive in the mind and consider carefully; to get an understanding of; to comprehend. 

  • To undergo digestion. 

  • To bear comfortably or patiently; to be reconciled to; to brook. 

  • To separate (the food) in its passage through the alimentary canal into the nutritive and nonnutritive elements; to prepare, by the action of the digestive juices, for conversion into blood; to convert into chyme. 

  • To expose to a gentle heat in a boiler or matrass, as a preparation for chemical operations. 

expansion

noun
  • A new addition. 

  • A product to be used with a previous product. 

  • That which is expanded; expanse; extended surface. 

  • The operation of steam in a cylinder after its communication with the boiler has been cut off, by which it continues to exert pressure upon the moving piston. 

  • The replacement of a short name (e.g., acronym, initialism, alphanumeric symbol, abbreviation) with the longer name that is synonymous with it, as when spelling out acronyms to ensure clarity for a general audience. 

  • The string of text thus substituted. 

  • An act, process, or instance of expanding. 

  • The fractional change in unit length per unit length per unit temperature change. 

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