arrangement vs synchronism

arrangement

noun
  • A collection of things that have been arranged. 

  • An agreement. 

  • Preparations for some undertaking. 

  • An adaptation of a piece of music for other instruments, or in another style. 

  • The act of arranging. 

  • A particular way in which items are organized. 

  • The manner of being arranged. 

synchronism

noun
  • The tabular arrangement of contemporary events etc. in history. 

  • A temporal relationship between events. 

  • The state of being synchronous. 

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