agreement vs vow

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. 

vow

noun
  • A declaration or assertion. 

  • A solemn promise to perform some act, or behave in a specified manner, especially a promise to live and act in accordance with the rules of a religious order. 

verb
  • To declare publicly that one has made a vow, usually to show one's determination or to announce an act of retaliation. 

  • To make a vow; to promise. 

  • To make a vow regarding (something). 

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