chime vs retrofit

chime

verb
  • To make a rude correspondence of sounds; to jingle, as in rhyming. 

  • To cause to sound in harmony; to play a tune, as upon a set of bells; to move or strike in harmony. 

  • To make the sound of a chime. 

  • To utter harmoniously; to recite rhythmically. 

  • To agree; to correspond. 

noun
  • A small hammer or other device used to strike a bell. 

  • The sound of such an instrument or device. 

  • An individual ringing component of such a set. 

  • A musical instrument producing a sound when struck, similar to a bell (e.g. a tubular metal bar) or actually a bell. Often used in the plural to refer to the set: the chimes. 

  • A small bell or other ringing or tone-making device as a component of some other device. 

retrofit

verb
  • 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 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 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. 

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. 

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