nugget vs retrofit

nugget

noun
  • A tidbit of something valuable. 

  • A small piece of tasty food, a tidbit. 

  • A type of boot polish. 

  • A chicken nugget. 

  • An inexperienced, newly trained fighter pilot. 

  • A bud from the Cannabis sativa plant, especially one that is potent. 

  • A small, compact chunk or clump. 

  • A partial description gleaned from data mining. 

  • A person with no arms or legs; a basket case. 

retrofit

noun
  • An act of supplying a device, structure, etc., with new components or parts that were not previously available or installed; a retrofitting. 

  • A change made to a device, structure, etc., by introducing components or parts that were not previously available or installed. 

verb
  • To supply (a device, structure, etc.) with new components or parts that were not previously available or installed; to modernize. 

  • Synonym of backport (“to retroactively supply a fix or feature to a previous version of a software product at the same time or after supplying it to the current version.”) 

  • To give new characteristics or make alterations (to someone or something) to suit them to changed circumstances. 

  • To supply a device, structure, etc., with new components or parts that were not previously available or installed. 

  • To add or substitute (new components or parts) that were not previously available for or installed in a device, structure, etc. 

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