agreement vs arrangement

agreement

noun
  • An understanding between entities to follow a specific course of conduct. 

  • Rules that exist in many languages that force some parts of a sentence to be used or inflected differently depending on certain attributes of other parts. 

  • A legally binding contract enforceable in a court of law. 

  • A state whereby several parties share a view or opinion; the state of not contradicting one another. 

arrangement

noun
  • The manner of being 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 collection of things that have been arranged. 

  • A particular way in which items are organized. 

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